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Expert: Charles A. Butterworth, Ph.D.

ITIS records citing expert
 
 Kingdom Plantae
  Acanthocalycium Backeb. -- not accepted
  Acanthocalycium aurantiacum Rausch -- not accepted
  Acanthocalycium brevispinum F. Ritter -- not accepted
  Acanthocalycium catamarcense F. Ritter -- not accepted
  Acanthocalycium chionanthum (Speg.) Backeb. -- not accepted
  Acanthocalycium ferrarii Rausch -- not accepted
  Acanthocalycium glaucum F. Ritter -- not accepted
  Acanthocalycium griseum Backeb. -- not accepted
  Acanthocalycium klimpelianum (Weidlich & Werderm.) Backeb. -- not accepted
  Acanthocalycium peitscherianum Backeb. -- not accepted
  Acanthocalycium spiniflorum (K. Schum.) Backeb. -- not accepted
  Acanthocalycium thionanthum (Speg.) Backeb. -- not accepted
  Acanthocalycium variiflorum Backeb. -- not accepted
  Acanthocalycium violaceum (Werderm.) Backeb. -- not accepted
  Acanthocereus (Engelm. ex A. Berger) Britton & Rose -- accepted -- triangle cactus
  Acanthocereus albicaulis Britton & Rose -- not accepted
  Acanthocereus floridanus Small ex Britton & Rose -- not accepted
  Acanthocereus pentagonus (L.) Britton & Rose -- not accepted
  Acanthocereus tetragonus (L.) Hummelinck -- accepted -- Órgano-alado de pitaya, triangle cactus
  Acanthocereus undulosus (DC.) Croizat -- not accepted
  Acantholobivia Backeb. -- not accepted
  Acantholobivia incuiensis (Rauh & Backeb.) Rauh & Backeb. -- not accepted
  Acantholobivia tegeleriana (Backeb.) Backeb. -- not accepted
  Acharagma (N.P. Taylor) Glass -- accepted
  Acharagma aguirreanum (Glass & R.A. Foster) Glass -- accepted
  Acharagma roseanum (Boed.) E.F. Anderson -- accepted
  Acharagma roseanum ssp. galeanense (Haugg) D.R. Hunt -- accepted
  Acharagma roseanum ssp. roseanum (Boed.) E.F. Anderson -- accepted
  Ancistrocactus (K. Schum.) Britton & Rose -- not accepted
  Ancistrocactus brevihamatus (Engelm.) Britton & Rose -- not accepted
  Ancistrocactus crassihamatus (F.A.C. Weber) L.D. Benson -- not accepted
  Ancistrocactus megarrhizus (Rose) Britton & Rose -- not accepted
  Ancistrocactus scheeri (Salm-Dyck) Britton & Rose -- not accepted
  Ancistrocactus tobuschii (W.T. Marshall) Backeb. ex L.D. Benson -- not accepted -- Tobusch fishhook cactus
  Ancistrocactus uncinatus (Galeotti ex Pfeiff.) L.D. Benson -- not accepted
  Ancistrocactus uncinatus var. uncinatus (Galeotti ex Pfeiff.) L.D. Benson -- not accepted
  Anhalonium Lem. -- not accepted
  Anhalonium furfuraceum (S. Watson) J.M. Coult. -- not accepted
  Anhalonium trigonum F.A.C. Weber -- not accepted
  Anisocereus Backeb. -- not accepted
  Anisocereus foetidus (T. MacDoug. & Miranda) W.T. Marshall -- not accepted
  Anisocereus lepidanthus (Eichlam) Backeb. -- not accepted
  Aporocactus Lem. -- not accepted
  Aporocactus conzattii Britton & Rose -- not accepted
  Aporocactus flagelliformis Lem. -- not accepted
  Aporocactus leptophis (DC.) Britton & Rose -- not accepted
  Aporocactus martianus Britton & Rose -- not accepted
  Ariocarpus Scheidw. -- accepted -- livingrock
  Ariocarpus agavoides (Castañeda) E.F. Anderson -- accepted
  Ariocarpus bravoanus H.M. Hern. & E.F. Anderson -- accepted
  Ariocarpus bravoanus ssp. bravoanus H.M. Hern. & E.F. Anderson -- accepted
  Ariocarpus bravoanus ssp. hintonii (Stuppy & N.P. Taylor) E.F. Anderson & W.A. Fitz Maur. -- accepted
  Ariocarpus fissuratus (Engelm.) K. Schum. -- accepted -- Biznaga peyotillo, chautle livingrock
  Ariocarpus fissuratus var. hintonii Stuppy & N.P. Taylor -- not accepted
  Ariocarpus kotschoubeyanus (Lem.) K. Schum. -- accepted
  Ariocarpus retusus Scheidw. -- accepted -- Biznaga-maguey peyote cimarrón
  Ariocarpus scapharostris Boed. -- not accepted
  Ariocarpus strobiliformis Werderm. -- not accepted
  Ariocarpus trigonus (F.A.C. Weber) K. Schum. -- accepted
  Armatocereus Backeb. -- accepted
  Armatocereus arboreus Rauh & Backeb. -- not accepted
  Armatocereus cartwrightianus (Britton & Rose) Backeb. -- accepted
  Armatocereus churinensis Rauh & Backeb. -- not accepted
  Armatocereus godingianus (Britton & Rose) Backeb. -- accepted
  Armatocereus laetus (Britton & Rose) Backeb. -- accepted
  Armatocereus mataranus ssp. ancashensis Ostolaza -- not accepted
  Armatocereus mataranus var. ancashensis F. Ritter -- not accepted
  Armatocereus matucanensis Backeb. -- accepted
  Armatocereus procerus Rauh & Backeb. -- accepted
  Armatocereus rauhii Backeb. -- accepted
  Armatocereus riomajensis Rauh & Backeb. -- accepted
  Armatocereus rupicola F. Ritter -- not accepted
  Arrojadoa Britton & Rose -- accepted
  Arrojadoa aureispina Buining & Brederoo -- not accepted
  Arrojadoa aureispina var. anguinea P.J. Braun & Esteves -- not accepted
  Arrojadoa aureispina var. guanambensis P.J. Braun & Heiman -- not accepted
  Arrojadoa beateae P.J. Braun & Esteves -- not accepted
  Arrojadoa canudosensis Buining & Brederoo -- not accepted
  Arrojadoa dinae Buining & Brederoo -- accepted
  Arrojadoa dinae ssp. eriocaulis (Buining & Brederoo) N.P. Taylor & Zappi -- not accepted
  Arrojadoa dinae ssp. nana (P.J. Braun & Esteves) P.J. Braun & Esteves -- not accepted
  Arrojadoa dinae var. nana P.J. Braun & Esteves -- not accepted
  Arrojadoa eriocaulis Buining & Brederoo -- accepted
  Arrojadoa eriocaulis ssp. albicoronata P.J. Braun & Esteves -- not accepted
  Arrojadoa horstiana P.J. Braun & Heiman -- not accepted
  Arrojadoa marylaniae Soares Filho & M. Machado -- accepted
  Arrojadoa multiflora F. Ritter -- not accepted
  Arrojadoa multiflora ssp. hofackeriana P.J. Braun & Esteves -- not accepted
  Arrojadoa penicillata (Gürke) Britton & Rose -- accepted
  Arrojadoa rhodantha (Gürke) Britton & Rose -- accepted
  Arrojadoa rhodantha ssp. aureispina (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Arrojadoa rhodantha ssp. canudosensis (Buining & Brederoo) P.J. Braun -- not accepted
  Arrojadoa rhodantha ssp. reflexa P.J. Braun -- not accepted
  Arrojadoa rhodantha var. theunisseniana (Buining & Brederoo) P.J. Braun -- not accepted
  Arthrocereus A. Berger -- accepted
  Arthrocereus campos-portoi (Werderm.) Backeb. -- not accepted
  Arthrocereus damazioi (K. Schum.) P.V. Heath -- not accepted
  Arthrocereus densiaculeatus (Backeb.) Krainz -- not accepted
  Arthrocereus glaziovii (K. Schum.) N.P. Taylor & Zappi -- accepted
  Arthrocereus itabiriticola P.J. Braun -- not accepted
  Arthrocereus melanurus (K. Schum.) Diers, P.J. Braun & Esteves -- accepted
  Arthrocereus melanurus ssp. magnus N.P. Taylor & Zappi -- accepted
  Arthrocereus melanurus ssp. melanurus (K. Schum.) Diers, P.J. Braun & Esteves -- accepted
  Arthrocereus melanurus ssp. odorus (F. Ritter) N.P. Taylor & Zappi -- accepted
  Arthrocereus odorus F. Ritter -- not accepted
  Arthrocereus rondonianus Backeb. & Voll -- accepted
  Arthrocereus spinosissimus (Buining & Brederoo) F. Ritter -- accepted
  Astrophytum Lem. -- accepted
  Astrophytum asterias (Zucc.) Lem. -- accepted -- Biznaga-algononcillo de estrella, sanddollar, seaurchin starcactus, star cactus
  Astrophytum capricorne (A. Dietr.) Britton & Rose -- accepted
  Astrophytum caput-medusae (Velazco & Nevárez) D.R. Hunt -- accepted
  Astrophytum coahuilense (H. Moeller) K. Kayser -- accepted
  Astrophytum columnare (K. Schum.) Sadovsky & Schütz -- not accepted
  Astrophytum myriostigma Lem. -- accepted
  Astrophytum myriostigma var. potosinum (Kanfer) Borg -- not accepted
  Astrophytum myriostigma var. tulense (K. Kayser) Y. Itô -- not accepted
  Astrophytum ornatum (DC.) Britton & Rose -- accepted
  Astrophytum senile Fric -- not accepted
  Astrophytum tulense (K. Kayser) Sadovsky & Schütz -- not accepted
  Austrocactus Britton & Rose -- accepted
  Austrocactus bertinii (Cels ex Hérincq) Britton & Rose -- accepted
  Austrocactus dusenii (F.A.C. Weber ex Speg.) Speg. -- not accepted
  Austrocactus gracilis Backeb. -- not accepted
  Austrocactus hibernus F. Ritter -- not accepted
  Austrocactus patagonicus (F.A.C. Weber ex Speg.) Hosseus -- not accepted
  Austrocactus philippii (Regel & Schmidt) Buxb. -- accepted
  Austrocactus spiniflorus (Phil.) F. Ritter -- accepted
  Austrocephalocereus Backeb. -- not accepted
  Austrocephalocereus fluminensis (Miq.) Buxb. -- not accepted
  Austrocylindropuntia Backeb. -- accepted
  Austrocylindropuntia chuquisacana (Cárdenas) F. Ritter -- not accepted
  Austrocylindropuntia cylindrica (Lam.) Backeb. -- accepted
  Austrocylindropuntia exaltata (A. Berger) Backeb. -- not accepted
  Austrocylindropuntia floccosa (Salm-Dyck) F. Ritter -- accepted
  Austrocylindropuntia haematacantha (Backeb.) Backeb. -- not accepted
  Austrocylindropuntia hirschii (Backeb.) E.F. Anderson -- not accepted
  Austrocylindropuntia humahuacana (Backeb.) Backeb. -- not accepted
  Austrocylindropuntia inarmata Backeb. -- not accepted
  Austrocylindropuntia intermedia Rauh & Backeb. -- not accepted
  Austrocylindropuntia lagopus (K. Schum.) I. Crook, J. Arnold & M. Lowry -- accepted
  Austrocylindropuntia lauliacoana F. Ritter -- not accepted
  Austrocylindropuntia machacana F. Ritter -- not accepted
  Austrocylindropuntia malyana (Rausch) F. Ritter -- not accepted
  Austrocylindropuntia pachypus (K. Schum.) Backeb. -- accepted
  Austrocylindropuntia punta-caillan (Rauh & Backeb.) E.F. Anderson -- not accepted
  Austrocylindropuntia shaferi (Britton & Rose) Backeb. -- accepted
  Austrocylindropuntia steiniana Backeb. -- not accepted
  Austrocylindropuntia subulata (Muehlenpf.) Backeb. -- accepted
  Austrocylindropuntia subulata ssp. exaltata (A. Berger) D.R. Hunt -- accepted
  Austrocylindropuntia subulata ssp. subulata (Muehlenpf.) Backeb. -- accepted
  Austrocylindropuntia tephrocactoides Rauh & Backeb. -- not accepted
  Austrocylindropuntia teres (Cels ex F.A.C. Weber) Backeb. -- not accepted
  Austrocylindropuntia verschaffeltii (Cels ex F.A.C. Weber) Backeb. -- accepted
  Austrocylindropuntia vestita (Salm-Dyck) Backeb. -- accepted
  Austrocylindropuntia weingartiana (Backeb.) Backeb. -- not accepted
  Austrocylindropuntia yanganucensis (Rauh & Backeb.) E.F. Anderson -- not accepted
  Aztekium Boed. -- accepted
  Aztekium hintonii Glass & W.A. Fitz Maur. -- accepted
  Aztekium ritteri (Boed.) Boed. -- accepted
  Azureocereus Akers & H. Johnson -- not accepted
  Azureocereus hertlingianus (Backeb.) Backeb. -- not accepted
  Bergerocactus Britton & Rose -- accepted -- snakecactus
  Bergerocactus emoryi (Engelm.) Britton & Rose -- accepted -- golden snakecactus, Órgano aterciopelado
  Bergerocereus emoryi (Engelm.) Britton & Rose -- not accepted
  Blossfeldia Werderm. -- accepted
  Blossfeldia liliputana Werderm. -- accepted
  Blossfeldia liliputana var. atroviridis (F. Ritter) Krainz -- not accepted
  Blossfeldia liliputana var. campaniflora (Backeb.) Krainz -- not accepted
  Blossfeldia liliputana var. fechseri (Backeb.) F. Ritter -- not accepted
  Blossfeldia minima F. Ritter -- not accepted
  Blossfeldia pedicellata F. Ritter -- not accepted
  Bolivicereus Cárdenas -- not accepted
  Bolivicereus brevicaulis F. Ritter -- not accepted
  Bolivicereus croceus F. Ritter -- not accepted
  Bolivicereus rufus F. Ritter -- not accepted
  Bolivicereus samaipatanus Cárdenas -- not accepted
  Bonifazia Standl. & Steyerm. -- not accepted
  Bonifazia quezalteca Standl. & Steyerm. -- not accepted
  Borzicactus Riccob. -- not accepted
  Borzicactus acanthurus (Vaupel) Britton & Rose -- not accepted
  Borzicactus aequatorialis Backeb. -- not accepted
  Borzicactus aurantiacus (Vaupel) Kimnach & Hutchison -- not accepted
  Borzicactus aurivillus (K. Schum.) Britton & Rose -- not accepted
  Borzicactus cajamarcensis F. Ritter -- not accepted
  Borzicactus calocephala (Skarupke) Donald -- not accepted
  Borzicactus calvescens Kimnach & Hutchison -- not accepted
  Borzicactus calviflorus F. Ritter -- not accepted
  Borzicactus celsianus (Lem. ex Salm-Dyck) Kimnach -- not accepted
  Borzicactus decumbens (Vaupel) Britton & Rose -- not accepted
  Borzicactus doelzianus (Backeb.) Kimnach -- not accepted
  Borzicactus faustianus Backeb. -- not accepted
  Borzicactus fieldianus Britton & Rose -- not accepted
  Borzicactus formosus (F. Ritter) Donald -- not accepted
  Borzicactus fossulatus (Labour.) Kimnach -- not accepted
  Borzicactus fruticosus (F. Ritter) Donald -- not accepted
  Borzicactus haynei (Otto) Kimnach -- not accepted
  Borzicactus hendriksenianus (Backeb.) Kimnach -- not accepted
  Borzicactus huagalensis Donald & A.B. Lau -- not accepted
  Borzicactus icosagonus (Kunth) Britton & Rose -- not accepted
  Borzicactus intertextus (F. Ritter) Donald -- not accepted
  Borzicactus jajoanus Backeb. -- not accepted
  Borzicactus krahnii Donald -- not accepted
  Borzicactus leucotrichus (Phil.) Kimnach -- not accepted
  Borzicactus madisoniorum Hutchison -- not accepted
  Borzicactus morleyanus Britton & Rose -- not accepted
  Borzicactus myriacanthus (Vaupel) Donald -- not accepted
  Borzicactus neoroezlii F. Ritter -- not accepted
  Borzicactus oreodoxus (F. Ritter) Donald -- not accepted
  Borzicactus paucicostatus (F. Ritter) Donald -- not accepted
  Borzicactus pisacensis (Kníze) G.D. Rowley -- not accepted
  Borzicactus plagiostoma (Vaupel) Britton & Rose -- not accepted
  Borzicactus pseudothelegonus (Rauh & Backeb.) Rauh & Backeb. -- not accepted
  Borzicactus purpureus F. Ritter -- not accepted
  Borzicactus ritteri (Buining) Donald -- not accepted
  Borzicactus samaipatanus (Cárdenas) Kimnach -- not accepted
  Borzicactus samnensis F. Ritter -- not accepted
  Borzicactus sepium (Kunth) Britton & Rose -- not accepted
  Borzicactus sextonianus (Backeb.) Kimnach -- not accepted
  Borzicactus soukupii (Kníze) G.D. Rowley -- not accepted
  Borzicactus sulcifer (Rauh & Backeb.) Kimnach -- not accepted
  Borzicactus tenuiserpens (Rauh & Backeb.) Kimnach -- not accepted
  Borzicactus tessellatus Akers & Buining -- not accepted
  Borzicactus trollii (Kupper) Kimnach -- not accepted
  Borzicactus tuberculatus Donald -- not accepted
  Borzicactus variabilis (Rauh & Backeb.) Donald -- not accepted
  Borzicactus ventimigliae Riccob. -- not accepted
  Borzicactus weberbaueri (Vaupel) Donald -- not accepted
  Borzicactus websterianus Backeb. -- not accepted
  Borzicactus websterianus var. rufispinus Backeb. -- not accepted
  Brachycalycium Backeb. -- not accepted
  Brachycalycium tilcarense Backeb. -- not accepted
  Brachycereus Britton & Rose -- accepted
  Brachycereus nesioticus (K. Schum.) Backeb. -- accepted
  Brasilicactus Backeb. -- not accepted
  Brasilicactus elachisanthus (F.A.C. Weber) Backeb. -- not accepted
  Brasilicactus graessneri (K. Schum.) Backeb. -- not accepted
  Brasilicactus haselbergii (F. Haage) Backeb. ex Schaffnit -- not accepted
  Brasilicereus Backeb. -- accepted
  Brasilicereus breviflorus F. Ritter -- not accepted
  Brasilicereus markgrafii Backeb. & Voll -- accepted
  Brasilicereus phaeacanthus (Gürke) Backeb. -- accepted
  Brasilicereus phaeacanthus ssp. breviflorus (F. Ritter) P.J. Braun & Esteves -- not accepted
  Brasiliopuntia (K. Schum.) A. Berger -- accepted
  Brasiliopuntia bahiensis (Britton & Rose) A. Berger -- not accepted
  Brasiliopuntia brasiliensis (Willd.) A. Berger -- accepted
  Brasiliopuntia neoargentina Backeb. -- not accepted
  Brasiliopuntia schulzii (A. Cast. & H.V. Lelong) Backeb. -- not accepted
  Brasiliopuntia subacarpa Rizzini & A. Mattos -- not accepted
  Browningia Britton & Rose -- accepted
  Browningia albiceps F. Ritter -- not accepted
  Browningia altissima (F. Ritter) Buxb. -- accepted
  Browningia amstutziae (Rauh & Backeb.) Hutchison ex Krainz -- accepted
  Browningia caineana (Cárdenas) D.R. Hunt -- not accepted
  Browningia candelaris (Meyen) Britton & Rose -- accepted
  Browningia candelaris ssp. candelaris (Meyen) Britton & Rose -- accepted
  Browningia candelaris ssp. icaensis (F. Ritter) D.R. Hunt -- accepted
  Browningia chlorocarpa (Kunth) W.T. Marshall -- accepted
  Browningia columnaris F. Ritter -- accepted
  Browningia hertlingiana (Backeb.) Buxb. -- accepted
  Browningia icaensis F. Ritter -- not accepted
  Browningia microsperma (Werderm. & Backeb.) W.T. Marshall -- accepted
  Browningia pilleifera (F. Ritter) Hutchison -- accepted
  Browningia riosaniensis (Backeb.) G.D. Rowley -- not accepted
  Buiningia Buxb. -- not accepted
  Buiningia brevicylindrica Buining -- not accepted
  Buiningia purpurea Buining & Brederoo -- not accepted
  Cactaceae Juss. -- accepted -- cacti, cactus
  Cactus L. -- not accepted
  Cactus brasiliensis Willd. -- not accepted
  Cactus broadwayi Britton & Rose -- not accepted
  Cactus chlorocarpus Kunth -- not accepted
  Cactus cochenilifer L. -- not accepted
  Cactus cochenillifera L. -- not accepted
  Cactus cochenilliferus L. -- not accepted
  Cactus coquimbanus Molina -- not accepted
  Cactus curvispinus Bertero ex Colla -- not accepted
  Cactus curvispinus (Otto) Kuntze -- not accepted
  Cactus cylindricus Lam. -- not accepted
  Cactus dillenii Ker Gawl. -- not accepted
  Cactus ficus-indica L. -- not accepted
  Cactus flagelliformis L. -- not accepted
  Cactus fragilis Nutt. -- not accepted
  Cactus humifusus Raf. -- not accepted
  Cactus intortus Mill. -- not accepted
  Cactus melocactus L. -- not accepted
  Cactus pentagonus L. -- not accepted
  Cactus pereskia L. -- not accepted
  Cactus phyllanthoides DC. -- not accepted
  Cactus pusillus Haw. -- not accepted
  Cactus repandus L. -- not accepted
  Cactus robustispinus (A. Schott ex Engelm.) Kuntze -- not accepted
  Cactus senilis (Lodd. ex Salm-Dyck) Kuntze -- not accepted
  Cactus sepium Kunth -- not accepted
  Cactus speciosus Cav. -- not accepted
  Cactus strictus Haw. -- not accepted
  Cactus triacanthus Willd. -- not accepted
  Cactus tunicatus Lehm. -- not accepted
  Cactus viviparus Nutt. -- not accepted
  Calymmanthium F. Ritter -- accepted
  Calymmanthium substerile F. Ritter -- accepted
  Carnegiea Britton & Rose -- accepted -- saguaro
  Carnegiea euphorbioides var. olfersii (Salm-Dyck) P.V. Heath -- not accepted
  Carnegiea fulviceps (F.A.C. Weber ex K. Schum.) P.V. Heath -- not accepted
  Carnegiea gigantea (Engelm.) Britton & Rose -- accepted -- Saguaro, saguaro
  Carnegiea laui P.V. Heath -- not accepted
  Carnegiea macrocephala (F.A.C. Weber ex K. Schum.) P.V. Heath -- not accepted
  Carnegiea mezcalaensis (Bravo) P.V. Heath -- not accepted
  Carnegiea nova P.V. Heath -- not accepted
  Carnegiea polylopha (DC.) D.R. Hunt -- not accepted
  Carnegiea scoparia (Polseg.) P.V. Heath -- not accepted
  Carnegiea squamulosa (Scheinvar & Sánchez-Mej.) P.V. Heath -- not accepted
  Carnegiea tetetzo (J.M. Coult.) P.V. Heath -- not accepted
  Cassytha Mill. -- not accepted
  Cassytha baccifera Sol. ex J.M. Mill. -- not accepted
  Castellanosia Cárdenas -- accepted
  Castellanosia caineana Cárdenas -- accepted
  Cephalocereus Pfeiff. -- accepted
  Cephalocereus alensis (F.A.C. Weber ex Rol.-Goss.) Britton & Rose -- not accepted
  Cephalocereus apicicephalium E.Y. Dawson -- accepted
  Cephalocereus arrabidae (Lem.) Britton & Rose -- not accepted
  Cephalocereus bahamensis Britton -- not accepted
  Cephalocereus barbadensis Britton & Rose -- not accepted
  Cephalocereus brasiliensis Britton & Rose -- not accepted
  Cephalocereus brooksianus Britton & Rose -- not accepted
  Cephalocereus catingicola (Gürke) Britton & Rose -- not accepted
  Cephalocereus chrysacanthus (F.A.C. Weber) Britton & Rose -- not accepted
  Cephalocereus collinsii Britton & Rose -- not accepted
  Cephalocereus colombianus Rose -- not accepted
  Cephalocereus columna-trajani (Karw.) K. Schum. -- accepted
  Cephalocereus delaetii (Gürke) Gürke -- not accepted
  Cephalocereus dybowskii (Rol.-Goss.) Britton & Rose -- not accepted
  Cephalocereus fluminensis (Miq.) Britton & Rose -- not accepted
  Cephalocereus fulviceps (F.A.C. Weber ex K. Schum.) H.E. Moore -- not accepted
  Cephalocereus gaumeri Britton & Rose -- not accepted
  Cephalocereus gounellei (F.A.C. Weber ex K. Schum.) Britton & Rose -- not accepted
  Cephalocereus guentheri Kupper -- not accepted
  Cephalocereus guerreronis (Backeb.) Buxb. -- not accepted
  Cephalocereus hoppenstedtii (Roezl ex Rümpler) K. Schum. -- not accepted
  Cephalocereus keyensis Britton & Rose -- not accepted
  Cephalocereus lanuginosus (L.) Britton & Rose -- not accepted
  Cephalocereus leucocephalus (Poselg.) Britton & Rose -- not accepted
  Cephalocereus leucostele (Gürke) Britton & Rose -- not accepted
  Cephalocereus macrocephalus F.A.C. Weber ex K. Schum. -- not accepted
  Cephalocereus maxonii Rose -- not accepted
  Cephalocereus militaris (Audot) H.E. Moore -- not accepted
  Cephalocereus millspaughii Britton -- not accepted
  Cephalocereus monoclonos (DC.) Britton & Rose -- not accepted
  Cephalocereus moritzianus (Otto) Britton & Rose -- not accepted
  Cephalocereus nobilis (Haw.) Britton & Rose -- not accepted
  Cephalocereus palmeri Rose -- not accepted
  Cephalocereus pentaedrophorus (Labour.) Britton & Rose -- not accepted
  Cephalocereus phaeacanthus (Gürke) Britton & Rose -- not accepted
  Cephalocereus piauhyensis (Gürke) Britton & Rose -- not accepted
  Cephalocereus polygonus (Lam.) Britton & Rose -- not accepted
  Cephalocereus polylophus (DC.) Britton & Rose -- not accepted
  Cephalocereus purpusii Britton & Rose -- not accepted
  Cephalocereus quadricentralis E.Y. Dawson -- not accepted
  Cephalocereus robinii (Lem.) Britton & Rose -- not accepted
  Cephalocereus robustus Britton & Rose -- not accepted
  Cephalocereus royenii (L.) Britton & Rose -- not accepted
  Cephalocereus russelianus (Rümpler) Rose -- not accepted
  Cephalocereus sartorianus Rose -- not accepted
  Cephalocereus scoparius (Polseg.) Britton & Rose -- not accepted
  Cephalocereus senilis (Haw.) Pfeiff. -- accepted
  Cephalocereus smithianus Britton & Rose -- not accepted
  Cephalocereus swartzii (Griseb.) Britton & Rose -- not accepted
  Cephalocereus tweedyanus Britton & Rose -- not accepted
  Cephalocereus zehnteri Britton & Rose -- not accepted
  Cephalocleistocactus F. Ritter -- not accepted
  Cephalocleistocactus chrysocephalus F. Ritter -- not accepted
  Cephalocleistocactus pallidus Backeb. -- not accepted
  Cephalocleistocactus ritteri (Backeb.) Backeb. -- not accepted
  Cephalocleistocactus schattatianus Backeb. -- not accepted
  Cereus Mill. -- accepted -- sweetpotato cactus
  Cereus acanthurus Vaupel -- not accepted
  Cereus acifer Otto ex Salm-Dyck -- not accepted
  Cereus acranthus Vaupel -- not accepted
  Cereus adelmarii (Rizzini & A. Mattos) P.J. Braun -- not accepted
  Cereus aethiops Haw. -- accepted
  Cereus albicaulis (Britton & Rose) Leutzelb. -- accepted
  Cereus alticostatus (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus amazonicus K. Schum. ex Vaupel -- not accepted
  Cereus anisitsii K. Schum. -- not accepted
  Cereus apiciflorus Vaupel -- not accepted
  Cereus apoloensis (Cárdenas) P.J. Braun & Esteves -- not accepted
  Cereus argentinensis Britton & Rose -- accepted
  Cereus atacamensis Phil. -- not accepted
  Cereus atroviridis Backeb. -- not accepted
  Cereus ballivianii (Cárdenas) P.J. Braun & Esteves -- not accepted
  Cereus baumannii Lem. -- not accepted
  Cereus baumannii Fenzl -- not accepted
  Cereus bicolor Rizzini & A. Mattos -- accepted
  Cereus biformis Lindl. -- not accepted
  Cereus blankii Poselg. -- not accepted
  Cereus brachypetalus Vaupel -- not accepted
  Cereus brevistylus K. Schum. ex Vaupel -- not accepted
  Cereus calcirupicola (F. Ritter) Rizzini -- not accepted
  Cereus calcirupicola ssp. cabralensis (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus calcirupicola ssp. cipoensis (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus calcirupicola var. cabralensis (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus calcirupicola var. cipoensis (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus californicus Torr. & A. Gray -- not accepted
  Cereus campinensis (Backeb. & Voll) P.J. Braun & Esteves -- not accepted
  Cereus campinensis ssp. piedadensis (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus campinensis var. piedadensis (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus candelaris Meyen -- not accepted
  Cereus candicans Gillies ex Salm-Dyck -- not accepted
  Cereus chacoanus Vaupel -- not accepted
  Cereus cochabambensis Cárdenas -- not accepted
  Cereus comarapanus Cárdenas -- not accepted
  Cereus crassisepalus Buining & Brederoo -- not accepted
  Cereus dayamii Speg. -- not accepted
  Cereus deserticola Werderm. -- not accepted
  Cereus diffusus (Britton & Rose) Werderm. -- not accepted
  Cereus diguetii A. Weber -- not accepted
  Cereus emoryi Engelm. -- not accepted
  Cereus engelmannii Parry ex Engelm. -- not accepted
  Cereus enneacanthus (Engelm.) Engelm. -- not accepted
  Cereus eriophorus Pfeiff. -- not accepted
  Cereus eriophorus var. fragrans (Small ex Britton & Rose) L.D. Benson -- not accepted -- fragrant prickly-apple
  Cereus estevesii P.J. Braun -- accepted
  Cereus euchlorus F.A.C. Weber ex K. Schum. -- not accepted
  Cereus euchlorus ssp. leucanthus (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus euchlorus ssp. rhodoleucanthus (K. Schum.) P.J. Braun & Esteves -- not accepted
  Cereus extensus Salm-Dyck ex DC. -- not accepted
  Cereus fendleri Engelm. -- not accepted
  Cereus fernambucensis Lem. -- accepted
  Cereus fernambucensis ssp. fernambucensis Lem. -- accepted
  Cereus fernambucensis ssp. sericifer (F. Ritter) N.P. Taylor & Zappi -- accepted
  Cereus fluminensis Miq. -- not accepted
  Cereus fricii Backeb. -- accepted
  Cereus giganteus Engelm. -- not accepted -- saguaro
  Cereus glaziovii K. Schum. -- not accepted
  Cereus goebelianus Vaupel -- not accepted
  Cereus goiasensis (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus gracilis var. aboriginus (Small) L.D. Benson -- not accepted
  Cereus gracilis var. simpsonii (Small ex Britton & Rose) L.D. Benson -- not accepted -- Simpson's prickly-apple
  Cereus grandiflorus (L.) Mill. -- not accepted
  Cereus grantianus (Britton) H.P. Kelsey & Dayton -- not accepted
  Cereus greggii Engelm. -- not accepted
  Cereus greggii var. transmontanus Engelm. -- not accepted
  Cereus grenadensis Britton & Rose -- not accepted
  Cereus haageanus (Backeb.) N.P. Taylor -- not accepted
  Cereus hankeanus F.A.C. Weber -- accepted
  Cereus hassleri K. Schum. -- not accepted
  Cereus hexagonus (L.) Mill. -- accepted -- lady of the night cactus
  Cereus hildmannianus K. Schum. -- accepted -- hedge cactus
  Cereus hildmannianus ssp. hildmannianus K. Schum. -- accepted
  Cereus hildmannianus ssp. uruguayanus (F. Ritter ex R. Kiesling) N.P. Taylor -- accepted
  Cereus hildmannianus ssp. xanthocarpus (K. Schum.) P.J. Braun & Esteves -- not accepted
  Cereus hookeri Link & Otto -- not accepted
  Cereus horrispinus Backeb. -- accepted
  Cereus huascha F.A.C. Weber -- not accepted
  Cereus huilunchu Cárdenas -- not accepted
  Cereus huitcholensis F.A.C. Weber -- not accepted
  Cereus huotii (J.F. Cels) J.F. Cels -- not accepted
  Cereus hyalacanthus K. Schum. -- not accepted
  Cereus hystrix (Haw.) Mill. -- not accepted
  Cereus imbricatus Haw. -- not accepted
  Cereus insularis Hemsl. -- accepted
  Cereus jamacaru DC. -- accepted
  Cereus jamacaru ssp. calcirupicola (F. Ritter) N.P. Taylor & Zappi -- accepted
  Cereus jamacaru ssp. goiasensis (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus jamacaru ssp. jamacaru DC. -- accepted
  Cereus kroenleinii N.P. Taylor -- accepted
  Cereus lageniformis C.F. Först. -- not accepted
  Cereus lamprospermus K. Schum. -- accepted
  Cereus lamprospermus ssp. colosseus (F. Ritter) P.J. Braun & Esteves -- accepted
  Cereus lamprospermus ssp. lamprospermus K. Schum. -- accepted
  Cereus laniceps K. Schum. -- not accepted
  Cereus lanosus (F. Ritter) P.J. Braun & Esteves -- accepted
  Cereus lauterbachii K. Schum. ex Chodat & Hassl. -- not accepted
  Cereus lindbergianus F.A.C. Weber -- not accepted
  Cereus lindmanii F.A.C. Weber ex K. Schum. -- not accepted
  Cereus litoralis Johow -- not accepted
  Cereus longiflorus Alexander -- not accepted
  Cereus longifolius Karw. ex Sweet -- not accepted
  Cereus margaritensis J.R. Johnst. -- not accepted
  Cereus markgrafii (Backeb. & Voll) P.J. Braun & Esteves -- not accepted
  Cereus martianus Zucc. -- not accepted
  Cereus martinii Labour. -- not accepted
  Cereus melanurus K. Schum. -- not accepted
  Cereus microspermus Werderm. & Backeb. -- not accepted
  Cereus microsphaericus K. Schum. -- not accepted
  Cereus minensis Werderm. -- not accepted
  Cereus mirabella N.P. Taylor -- accepted
  Cereus mortensenii (Croizat) D.R. Hunt & N.P. Taylor -- accepted
  Cereus neonesioticus (F. Ritter) P.J. Braun -- not accepted
  Cereus neotetragonus Backeb. -- not accepted
  Cereus nesioticus K. Schum. -- not accepted
  Cereus nudiflorus Engelm. ex Sauvalle -- not accepted
  Cereus parviflorus K. Schum. -- not accepted
  Cereus paucispinus Engelm. -- not accepted
  Cereus pectinatus var. armatus Poselg. -- not accepted
  Cereus pectinatus var. rigidissimus Engelm. -- not accepted
  Cereus penicillatus Gürke -- not accepted
  Cereus pensilis K. Brandegee -- not accepted
  Cereus pentaedrophorus Labour. -- not accepted
  Cereus pentagonus (L.) Haw. -- not accepted
  Cereus pentalophus var. radicans DC. -- not accepted
  Cereus pentalophus var. simplex DC. -- not accepted
  Cereus perlucens K. Schum. -- not accepted
  Cereus peruvianus (L.) Mill. -- not accepted
  Cereus peruvianus R. Kiesling -- not accepted
  Cereus phaeacanthus Gürke -- not accepted
  Cereus phatnospermus K. Schum. -- accepted
  Cereus phatnospermus ssp. kroenleinii (N.P. Taylor) P.J. Braun & Esteves -- not accepted
  Cereus phoeniceus Engelm. -- not accepted
  Cereus phoeniceus var. pacificus Engelm. ex Orcutt -- not accepted
  Cereus pierre-braunianus Esteves -- accepted
  Cereus plagiostoma Vaupel -- not accepted
  Cereus poselgeri (Lem.) J.M. Coult. -- not accepted
  Cereus pseudomelanostele Werderm. & Backeb. -- not accepted
  Cereus pteranthus Link ex A. Dietr. -- not accepted
  Cereus quadricostatus Bello -- not accepted -- Sebucan
  Cereus repandus (L.) Mill. -- accepted
  Cereus rhodoleucanthus K. Schum. -- not accepted
  Cereus ridleii Andrade-Lima ex Backeb. -- not accepted
  Cereus ritteri P.J. Braun & Esteves -- not accepted
  Cereus ritteri ssp. parapetiensis (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus robinii (Lem.) L.D. Benson -- not accepted -- Key tree cactus
  Cereus robinii var. keyensis (Britton & Rose) L.D. Benson -- not accepted
  Cereus roseiflorus Speg. -- not accepted
  Cereus royenii (L.) Mill. -- not accepted
  Cereus russelianus Salm-Dyck -- not accepted
  Cereus russelianus (Hook.) Gardner ex Lem. -- not accepted
  Cereus saddianus (Rizzini & A. Mattos) P.J. Braun -- accepted
  Cereus saxicola Morong -- not accepted
  Cereus scheeri Salm-Dyck -- not accepted
  Cereus schickendantzii F.A.C. Weber ex K. Schum. -- not accepted
  Cereus schmollii Weing. -- not accepted
  Cereus schottii Engelm. -- not accepted
  Cereus sciurus K. Brandegee -- not accepted
  Cereus sericifer (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cereus silvestrii Speg. -- not accepted
  Cereus smithianus Sweet -- not accepted
  Cereus smithianus (Britton & Rose) Werderm. -- not accepted
  Cereus spegazzinii F.A.C. Weber -- accepted
  Cereus spinulosus DC. -- not accepted
  Cereus squarrosus Vaupel -- not accepted
  Cereus stenogonus K. Schum. -- accepted
  Cereus stramineus Engelm. -- not accepted
  Cereus striatus Brandegee -- not accepted
  Cereus strictus DC. -- not accepted
  Cereus tacaquirensis Vaupel -- not accepted
  Cereus tacuaralensis Cárdenas -- not accepted
  Cereus tarijensis Vaupel -- not accepted
  Cereus terscheckii J. Parm. ex Pfeiff. -- not accepted
  Cereus tetragonus (L.) Mill. -- not accepted
  Cereus thelegonoides Speg. -- not accepted
  Cereus thelegonus F.A.C. Weber -- not accepted
  Cereus thurberi Engelm. -- not accepted
  Cereus tominensis Weing. -- not accepted
  Cereus tortuosus J. Forbes ex Otto & A. Dietr. -- not accepted
  Cereus trigonodendron K. Schum. ex Vaupel -- accepted
  Cereus tuberosus Poselg. -- not accepted
  Cereus undatus Haw. -- not accepted
  Cereus undulosus DC. -- not accepted
  Cereus uruguayanus F. Ritter ex R. Kiesling -- not accepted -- hedge cactus, Peruvian apple, Peruvian torch, spine tree cactus
  Cereus vargasianus Cárdenas -- accepted
  Cereus viperinus F.A.C. Weber -- not accepted
  Cereus xanthocarpus K. Schum. -- not accepted
  Chamaecereus Britton & Rose -- not accepted
  Chamaecereus silvestrii (Speg.) Britton & Rose -- not accepted
  Chiapasia Britton & Rose -- not accepted
  Chiapasia nelsonii (Britton & Rose) Britton & Rose -- not accepted
  Chileorebutia F. Ritter -- not accepted
  Chileorebutia duripulpa F. Ritter -- not accepted
  Chileorebutia esmeraldana F. Ritter -- not accepted
  Chileorebutia malleolata F. Ritter -- not accepted
  Cintia Kníze & Ríha -- not accepted
  Cintia knizei Ríha -- not accepted
  Cipocereus F. Ritter -- accepted
  Cipocereus bradei (Backeb. & Voll) Barthlott & N.P. Taylor -- accepted
  Cipocereus crassisepalus (Buining & Brederoo) Barthlott & N.P. Taylor -- accepted
  Cipocereus laniflorus N.P. Taylor & Zappi -- accepted
  Cipocereus minensis (Werderm.) F. Ritter -- accepted
  Cipocereus minensis ssp. leiocarpus N.P. Taylor & Zappi -- accepted
  Cipocereus minensis ssp. minensis (Werderm.) F. Ritter -- accepted
  Cipocereus pleurocarpus F. Ritter -- not accepted
  Cipocereus pusilliflorus (F. Ritter) Barthlott & N.P. Taylor -- accepted
  Cleistocactus Lem. -- accepted
  Cleistocactus acanthurus (Vaupel) D.R. Hunt -- accepted
  Cleistocactus acanthurus ssp. acanthurus (Vaupel) D.R. Hunt -- accepted
  Cleistocactus acanthurus ssp. faustianus (Backeb.) Ostolaza -- accepted
  Cleistocactus acanthurus ssp. pullatus (Rauh & Backeb.) Ostolaza -- accepted
  Cleistocactus angosturensis Cárdenas -- not accepted
  Cleistocactus anguinus (Gürke) Britton & Rose -- not accepted
  Cleistocactus areolatus (Muehlenpf. ex K. Schum.) Riccob. -- not accepted
  Cleistocactus aureispinus (F. Ritter) D.R. Hunt -- not accepted
  Cleistocactus ayopayanus Cárdenas -- accepted
  Cleistocactus azerensis Cárdenas -- not accepted
  Cleistocactus baumannii (Lem.) Lem. -- accepted
  Cleistocactus baumannii ssp. anguinus (Gürke) P.J. Braun & Esteves -- not accepted
  Cleistocactus baumannii ssp. baumannii (Lem.) Lem. -- accepted
  Cleistocactus baumannii ssp. chacoanus (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cleistocactus baumannii ssp. croceiflorus (F. Ritter) P.J. Braun & Esteves -- not accepted
  Cleistocactus baumannii ssp. horstii (P.J. Braun) N.P. Taylor -- accepted
  Cleistocactus baumannii ssp. santacruzensis (Backeb.) Mottram -- accepted
  Cleistocactus brevispinus F. Ritter -- not accepted
  Cleistocactus brookeae Cárdenas -- accepted
  Cleistocactus brookeae ssp. brookeae Cárdenas -- accepted
  Cleistocactus brookeae ssp. vulpis-cauda (F. Ritter & Cullmann) Mottram -- accepted
  Cleistocactus bruneispinus Backeb. -- not accepted
  Cleistocactus buchtienii Backeb. -- accepted
  Cleistocactus candelilla Cárdenas -- accepted
  Cleistocactus candelilla ssp. candelilla Cárdenas -- accepted
  Cleistocactus candelilla ssp. piraymirensis (Cárdenas) Mottram -- accepted
  Cleistocactus capadalensis F. Ritter -- not accepted
  Cleistocactus chacoanus F. Ritter -- not accepted
  Cleistocactus chotaensis F.A.C. Weber -- not accepted
  Cleistocactus chrysocephalus (F. Ritter) Mottram -- accepted
  Cleistocactus clavicaulis Cárdenas -- not accepted
  Cleistocactus clavispinus (Rauh & Backeb.) Ostolaza -- not accepted
  Cleistocactus compactus Backeb. -- not accepted
  Cleistocactus crassicaulis Cárdenas -- not accepted
  Cleistocactus croceiflorus F. Ritter -- not accepted
  Cleistocactus dependens Cárdenas -- not accepted
  Cleistocactus erectispinus (Rauh & Backeb.) Ostolaza -- not accepted
  Cleistocactus ferrarii R. Kiesling -- not accepted
  Cleistocactus fieldianus (Britton & Rose) D.R. Hunt -- accepted
  Cleistocactus fieldianus ssp. fieldianus (Britton & Rose) D.R. Hunt -- accepted
  Cleistocactus fieldianus ssp. samnensis (F. Ritter) Ostolaza -- not accepted
  Cleistocactus fieldianus ssp. tessellatus (Akers & Buining) Ostolaza -- accepted
  Cleistocactus flavispinus (K. Schum.) Backeb. -- not accepted
  Cleistocactus fossulatus Mottram -- not accepted
  Cleistocactus fusiflorus Cárdenas -- not accepted
  Cleistocactus glaucus F. Ritter -- not accepted
  Cleistocactus granditessellatus (Rauh & Backeb.) Leuenb. -- not accepted
  Cleistocactus granjaensis F. Ritter -- not accepted
  Cleistocactus grossei Backeb. -- not accepted
  Cleistocactus herzogianus Backeb. -- not accepted
  Cleistocactus hildegardiae F. Ritter -- not accepted
  Cleistocactus hoffmannii G.J. Charles -- accepted
  Cleistocactus horstii P.J. Braun -- not accepted
  Cleistocactus humboldtii (Kunth) F.A.C. Weber -- not accepted
  Cleistocactus hyalacanthus (K. Schum.) Rol.-Goss. -- accepted
  Cleistocactus hyalacanthus ssp. hyalacanthus (K. Schum.) Rol.-Goss. -- accepted
  Cleistocactus hyalacanthus ssp. tarijensis (Cárdenas) Mottram -- accepted
  Cleistocactus hystrix (Rauh & Backeb.) Ostolaza -- accepted
  Cleistocactus ianthinus Cárdenas -- not accepted
  Cleistocactus icosagonus (Kunth) F.A.C. Weber -- accepted
  Cleistocactus jajoanus (Backeb.) G.J. Charles -- accepted
  Cleistocactus jujuyensis (Backeb.) Backeb. -- not accepted
  Cleistocactus laniceps (K. Schum.) Rol.-Goss. -- accepted
  Cleistocactus leonensis Madsen -- accepted
  Cleistocactus longiserpens Leuenb. -- accepted
  Cleistocactus luribayensis Cárdenas -- accepted
  Cleistocactus mendozae Cárdenas -- not accepted
  Cleistocactus micropetalus F. Ritter -- not accepted
  Cleistocactus morawetzianus Backeb. -- accepted
  Cleistocactus morawetzianus var. pycnacanthus Rauh & Backeb. -- not accepted
  Cleistocactus muyurinensis F. Ritter -- not accepted
  Cleistocactus neoroezlii (F. Ritter) Buxb. -- accepted
  Cleistocactus orthogonus Cárdenas -- not accepted
  Cleistocactus pachycladus (Rauh & Backeb.) Ostolaza -- accepted
  Cleistocactus palhuayensis F. Ritter & Shahori -- not accepted
  Cleistocactus paraguariensis F. Ritter -- not accepted
  Cleistocactus parapetiensis Cárdenas -- accepted
  Cleistocactus parviflorus (K. Schum.) Rol.-Goss. -- accepted
  Cleistocactus peculiaris (Rauh & Backeb.) Ostolaza -- not accepted
  Cleistocactus piraymirensis Cárdenas -- not accepted
  Cleistocactus plagiostoma (Vaupel) D.R. Hunt -- accepted
  Cleistocactus pojoensis (Cárdenas) Backeb. -- not accepted
  Cleistocactus pungens F. Ritter -- accepted
  Cleistocactus pycnacanthus (Rauh & Backeb.) Backeb. -- accepted
  Cleistocactus reae Cárdenas -- accepted
  Cleistocactus ressinianus Cárdenas -- not accepted
  Cleistocactus ritteri Backeb. -- accepted
  Cleistocactus roezlii (Haage) Backeb. -- not accepted
  Cleistocactus roseiflorus (Buining) G.D. Rowley -- not accepted
  Cleistocactus samaipatanus (Cárdenas) D.R. Hunt -- accepted
  Cleistocactus santacruzensis Backeb. -- not accepted
  Cleistocactus sepium (Kunth) F.A.C. Weber -- accepted
  Cleistocactus sextonianus (Backeb.) D.R. Hunt -- accepted
  Cleistocactus smaragdiflorus (F.A.C. Weber) Britton & Rose -- accepted
  Cleistocactus strausii (Heese) Backeb. -- accepted
  Cleistocactus sucrensis Cárdenas -- not accepted
  Cleistocactus sulcifer (Rauh & Backeb.) Leuenb. -- accepted
  Cleistocactus tarijensis Cárdenas -- not accepted
  Cleistocactus tenuiserpens Rauh & Backeb. -- accepted
  Cleistocactus tominensis (Weing.) Backeb. -- accepted
  Cleistocactus tominensis ssp. micropetalus (F. Ritter) Mottram -- accepted
  Cleistocactus tominensis ssp. tominensis (Weing.) Backeb. -- accepted
  Cleistocactus vallegrandensis Cárdenas -- not accepted
  Cleistocactus varispinus F. Ritter -- accepted
  Cleistocactus villaazuensis F. Ritter -- not accepted
  Cleistocactus villaazulensis F. Ritter -- not accepted
  Cleistocactus viridialabastri Cárdenas -- not accepted
  Cleistocactus viridiflorus Backeb. -- not accepted
  Cleistocactus vulpis-cauda F. Ritter & Cullmann -- not accepted
  Cleistocactus wendlandiorum Backeb. -- not accepted
  Cleistocactus winteri D.R. Hunt -- accepted
  Cleistocactus winteri ssp. colademono D.R. Hunt -- accepted
  Cleistocactus winteri ssp. winteri D.R. Hunt -- accepted
  Cleistocactus xylorhizus (F. Ritter) Ostolaza -- accepted
  Clistanthocereus Backeb. -- not accepted
  Clistanthocereus calviflorus (F. Ritter) Backeb. -- not accepted
  Clistanthocereus fieldianus (Britton & Rose) Backeb. -- not accepted
  Clistanthocereus hertlingianus Backeb. -- not accepted
  Clistanthocereus samnensis (F. Ritter) Backeb. -- not accepted
  Clistanthocereus tessellatus (Akers & Buining) Backeb. -- not accepted
  Cochemiea (K. Brandegee) Walton -- not accepted
  Cochemiea halei (Brandegee) Britton & Rose -- not accepted
  Cochemiea maritima G.E. Linds. -- not accepted
  Cochemiea pondii (Greene) Walton -- not accepted
  Cochemiea pondii ssp. maritima (G.E. Linds.) U. Guzmán -- not accepted
  Cochemiea pondii ssp. setispina (J.M. Coult.) U. Guzmán -- not accepted
  Cochemiea poselgeri (Hildm.) Britton & Rose -- not accepted
  Cochemiea setispina (J.M. Coult.) Walton -- not accepted
  Cochiseia W.H. Earle -- not accepted
  Cochiseia robbinsiorum W.H. Earle -- not accepted
  Coleocephalocereus Backeb. -- accepted
  Coleocephalocereus albicephalus (Buining & Brederoo) F.H. Brandt -- not accepted
  Coleocephalocereus aureispinus Buining & Brederoo -- not accepted
  Coleocephalocereus aureus F. Ritter -- accepted
  Coleocephalocereus braunii Diers & Esteves -- accepted
  Coleocephalocereus brevicylindricus (Buining) F. Ritter -- not accepted
  Coleocephalocereus buxbaumianus Buining -- accepted
  Coleocephalocereus buxbaumianus ssp. buxbaumianus Buining -- accepted
  Coleocephalocereus buxbaumianus ssp. flavisetus (F. Ritter) N.P. Taylor & Zappi -- accepted
  Coleocephalocereus decumbens F. Ritter -- not accepted
  Coleocephalocereus diersianus P.J. Braun & Esteves -- accepted
  Coleocephalocereus dybowskii (Rol.-Goss.) F.H. Brandt -- not accepted
  Coleocephalocereus elongatus (Buining) P.J. Braun -- not accepted
  Coleocephalocereus estevesii Diers -- not accepted
  Coleocephalocereus flavisetus F. Ritter -- not accepted
  Coleocephalocereus fluminensis (Miq.) Backeb. -- accepted
  Coleocephalocereus fluminensis ssp. braamhaarii (P.J. Braun) P.J. Braun & Esteves -- not accepted
  Coleocephalocereus fluminensis ssp. decumbens (F. Ritter) N.P. Taylor & Zappi -- accepted
  Coleocephalocereus fluminensis ssp. fluminensis (Miq.) Backeb. -- accepted
  Coleocephalocereus fluminensis ssp. paulensis (F. Ritter) P.J. Braun & Esteves -- not accepted
  Coleocephalocereus fluminensis var. braamhaarii P.J. Braun -- not accepted
  Coleocephalocereus goebelianus (Vaupel) Buining & Brederoo -- accepted
  Coleocephalocereus lehmannianus (Werderm.) F.H. Brandt -- not accepted
  Coleocephalocereus pluricostatus Buining & Brederoo -- accepted
  Coleocephalocereus pluricostatus ssp. uebelmanniorum P.J. Braun & Esteves -- not accepted
  Coleocephalocereus purpureus (Buining & Brederoo) F. Ritter -- accepted
  Coleocephalocereus uebelmanniorum (P.J. Braun & Esteves) P.J. Braun, Esteves & Hofacker -- not accepted
  Coloradoa Boissev. & C. Davidson -- not accepted
  Coloradoa mesae-verdae Boissev. & C. Davidson -- not accepted
  Consolea Lem. -- accepted
  Consolea bahamana A. Berger -- not accepted
  Consolea corallicola Small -- accepted -- Florida semaphore cactus
  Consolea falcata (Ekman & Werderm.) F.M. Knuth -- not accepted
  Consolea macracantha (Griseb.) A. Berger -- accepted
  Consolea microcarpa (K. Schum.) E.F. Anderson -- not accepted
  Consolea millspaughii A. Berger -- not accepted
  Consolea millspaughii ssp. caymanensis Areces -- not accepted
  Consolea millspaughii var. caymanensis Areces -- not accepted
  Consolea moniliformis (Haw. ex Steud.) A. Berger -- accepted
  Consolea moniliformis ssp. guantanamana Areces -- not accepted
  Consolea nashii A. Berger -- not accepted
  Consolea nashii ssp. gibarensis Areces -- not accepted
  Consolea picardae (Urb.) Areces -- not accepted
  Consolea spinosissima Lem. -- accepted
  Copiapoa Britton & Rose -- accepted
  Copiapoa ahremephiana N.P. Taylor & G.J. Charles -- accepted
  Copiapoa alticostata F. Ritter -- not accepted
  Copiapoa aphanes Mächler & Helmut Walter -- not accepted
  Copiapoa atacamensis Middled. -- not accepted
  Copiapoa boliviana (Pfeiff.) F. Ritter -- not accepted
  Copiapoa bridgesii (Pfeiff.) Backeb. -- not accepted
  Copiapoa calderiana F. Ritter -- accepted
  Copiapoa calderiana ssp. atacamensis (Middled.) Mottram -- accepted
  Copiapoa calderiana ssp. calderiana F. Ritter -- accepted
  Copiapoa calderiana ssp. longistaminea (F. Ritter) N.P. Taylor -- not accepted
  Copiapoa carrizalensis F. Ritter -- not accepted
  Copiapoa chaniaralensis F. Ritter -- not accepted
  Copiapoa cinerascens (Salm-Dyck) Britton & Rose -- accepted
  Copiapoa cinerea (Phil.) Britton & Rose -- accepted
  Copiapoa cinerea ssp. cinerea (Phil.) Britton & Rose -- accepted
  Copiapoa cinerea ssp. columna-alba (F. Ritter) D.R. Hunt -- accepted
  Copiapoa cinerea ssp. dealbata (F. Ritter) Slaba -- not accepted
  Copiapoa cinerea ssp. haseltoniana (Backeb.) N.P. Taylor -- accepted
  Copiapoa cinerea ssp. krainziana (F. Ritter) Slaba -- not accepted
  Copiapoa cinerea ssp. longistaminea (F. Ritter) Mereg. -- not accepted
  Copiapoa cinerea var. dealbata (F. Ritter) Slaba -- not accepted
  Copiapoa cinerea var. gigantea (Backeb.) N.P. Taylor -- not accepted
  Copiapoa cinerea var. krainziana (F. Ritter) G.J. Charles -- not accepted
  Copiapoa cinerea var. longistaminea (F. Ritter) Slaba -- not accepted
  Copiapoa columna-alba F. Ritter -- not accepted
  Copiapoa coquimbana (Karw. ex Rümpler) Britton & Rose -- accepted
  Copiapoa cuprea F. Ritter -- not accepted
  Copiapoa cupreata (Poselg. ex Rümpler) Backeb. -- not accepted
  Copiapoa dealbata F. Ritter -- accepted
  Copiapoa decorticans N.P. Taylor & G.J. Charles -- accepted
  Copiapoa desertorum F. Ritter -- not accepted
  Copiapoa dura F. Ritter -- not accepted
  Copiapoa echinata F. Ritter -- not accepted
  Copiapoa echinoides (Lem.) Britton & Rose -- accepted
  Copiapoa eremophila F. Ritter -- not accepted
  Copiapoa esmeraldana F. Ritter -- accepted
  Copiapoa ferox Lembcke & Backeb. -- not accepted
  Copiapoa fiedleriana (K. Schum.) Backeb. -- accepted
  Copiapoa gigantea Backeb. -- not accepted
  Copiapoa grandiflora F. Ritter -- accepted
  Copiapoa haseltoniana Backeb. -- not accepted
  Copiapoa hornilloensis F. Ritter -- not accepted
  Copiapoa humilis (Phil.) Hutchison -- accepted
  Copiapoa humilis ssp. australis Hoxey -- not accepted
  Copiapoa humilis ssp. humilis (Phil.) Hutchison -- accepted
  Copiapoa humilis ssp. tenuissima (F. Ritter) D.R. Hunt -- accepted
  Copiapoa humilis ssp. tocopillana (F. Ritter) D.R. Hunt -- accepted
  Copiapoa humilis ssp. variispinata (F. Ritter) D.R. Hunt -- accepted
  Copiapoa hypogaea F. Ritter -- accepted
  Copiapoa hypogaea ssp. hypogaea F. Ritter -- accepted
  Copiapoa hypogaea ssp. laui (Diers) G.J. Charles -- accepted
  Copiapoa hypogaea ssp. tenuissima F. Ritter ex D.R. Hunt -- not accepted
  Copiapoa krainziana F. Ritter -- accepted
  Copiapoa laui Diers -- not accepted
  Copiapoa lembckei Backeb. -- not accepted
  Copiapoa longispina F. Ritter -- not accepted
  Copiapoa longistaminea F. Ritter -- accepted
  Copiapoa marginata (Salm-Dyck) Britton & Rose -- accepted
  Copiapoa megarhiza Britton & Rose -- accepted
  Copiapoa megarhiza var. echinata (F. Ritter) A.E. Hoffm. -- accepted
  Copiapoa megarhiza var. megarhiza Britton & Rose -- accepted
  Copiapoa melanohystrix F. Ritter -- not accepted
  Copiapoa mollicula F. Ritter -- not accepted
  Copiapoa montana F. Ritter -- accepted
  Copiapoa montana ssp. grandiflora (F. Ritter) N.P. Taylor -- not accepted
  Copiapoa olivana F. Ritter -- not accepted
  Copiapoa paposoensis F. Ritter -- not accepted
  Copiapoa pendulina F. Ritter -- not accepted
  Copiapoa pepiniana (Lem. ex Salm-Dyck) Backeb. -- not accepted
  Copiapoa pseudocoquimbana F. Ritter -- not accepted
  Copiapoa rarissima F. Ritter -- not accepted
  Copiapoa rubriflora F. Ritter -- not accepted
  Copiapoa rupestris F. Ritter -- not accepted
  Copiapoa serpentisulcata F. Ritter -- accepted
  Copiapoa solaris (F. Ritter) F. Ritter -- accepted
  Copiapoa streptocaulon (Hook.) Oosten -- not accepted
  Copiapoa taltalensis (Werderm.) Looser -- accepted
  Copiapoa taltalensis ssp. desertorum (F. Ritter) G.J. Charles -- accepted
  Copiapoa taltalensis ssp. taltalensis (Werderm.) Looser -- accepted
  Copiapoa tenebrosa F. Ritter -- not accepted
  Copiapoa tenuissima F. Ritter -- not accepted
  Copiapoa tocopillana F. Ritter -- not accepted
  Copiapoa totoralensis F. Ritter -- not accepted
  Copiapoa vallenarensis F. Ritter -- not accepted
  Copiapoa variispinata F. Ritter -- not accepted
  Corryocactus Britton & Rose -- accepted
  Corryocactus acervatus F. Ritter -- not accepted
  Corryocactus apiciflorus (Vaupel) Hutchison -- accepted
  Corryocactus aureus (F.A.C. Weber) Hutchison -- accepted
  Corryocactus ayacuchoensis Rauh & Backeb. -- accepted
  Corryocactus ayopayanus Cárdenas -- not accepted
  Corryocactus brachycladus F. Ritter -- not accepted
  Corryocactus brachypetalus (Vaupel) Britton & Rose -- accepted
  Corryocactus brevispinus Rauh & Backeb. -- not accepted
  Corryocactus brevistylus (K. Schum. ex Vaupel) Britton & Rose -- accepted
  Corryocactus brevistylus ssp. puquiensis (Rauh & Backeb.) Ostolaza -- not accepted
  Corryocactus brevistylus var. puquiensis (Rauh & Backeb.) F. Ritter -- not accepted
  Corryocactus chachapoyensis Ochoa & Backeb. ex D.R. Hunt -- accepted
  Corryocactus charazanensis Cárdenas -- not accepted
  Corryocactus chavinilloensis F. Ritter -- not accepted
  Corryocactus cuajonesensis F. Ritter -- not accepted
  Corryocactus erectus (Backeb.) F. Ritter -- accepted
  Corryocactus gracilis F. Ritter -- not accepted
  Corryocactus heteracanthus Backeb. -- not accepted
  Corryocactus huincoensis F. Ritter -- not accepted
  Corryocactus krausii Backeb. -- not accepted
  Corryocactus matucanensis F. Ritter -- not accepted
  Corryocactus maximus (Backeb.) Hutchison -- not accepted
  Corryocactus megarhizus F. Ritter -- not accepted
  Corryocactus melaleucus F. Ritter -- not accepted
  Corryocactus melanotrichus (K. Schum.) Britton & Rose -- accepted
  Corryocactus odoratus F. Ritter -- not accepted
  Corryocactus pachycladus Rauh & Backeb. -- not accepted
  Corryocactus pilispinus F. Ritter -- not accepted
  Corryocactus prostratus F. Ritter -- not accepted
  Corryocactus pulquinensis Cárdenas -- not accepted
  Corryocactus puquiensis Rauh & Backeb. -- not accepted
  Corryocactus pyroporphyranthus F. Ritter -- not accepted
  Corryocactus quadrangularis (Rauh & Backeb.) F. Ritter -- accepted
  Corryocactus quivillanus F. Ritter -- not accepted
  Corryocactus serpens F. Ritter -- accepted
  Corryocactus solitarius F. Ritter -- not accepted
  Corryocactus spiniflorus (Phil.) Hutchison -- not accepted
  Corryocactus squarrosus (Vaupel) Hutchison -- accepted
  Corryocactus tarijensis Cárdenas -- accepted
  Corryocactus tenuiculus (Backeb.) Hutchison -- not accepted
  Corynopuntia F.M. Knuth -- accepted
  Corynopuntia bulbispina (Engelm.) F.M. Knuth -- accepted
  Corynopuntia dumetorum (A. Berger) F.M. Knuth -- not accepted
  Corynopuntia invicta (Brandegee) F.M. Knuth -- accepted
  Corynopuntia marenae (S.H. Parsons) M.P. Griff. -- accepted
  Corynopuntia moelleri (A. Berger) F.M. Knuth -- accepted
  Corynopuntia reflexispina (Wiggins & Rollins) Backeb. -- accepted
  Corynopuntia vilis (Rose) F.M. Knuth -- accepted
  Coryphantha (Engelm.) Lem. -- accepted -- beehive cactus
  Coryphantha aggregata (Engelm.) Britton & Rose -- not accepted
  Coryphantha albicolumnaria (Hester) Zimmerman -- not accepted -- white column cory cactus
  Coryphantha alversonii (J.M. Coult.) Orcutt -- not accepted
  Coryphantha andreae (J.A. Purpus & Boed.) A. Berger -- not accepted
  Coryphantha arizonica (Engelm. ex Brew & Wats) Britton & Rose -- not accepted
  Coryphantha asperispina Boed. -- not accepted
  Coryphantha bergeriana Boed. -- not accepted
  Coryphantha bernalensis L. Bremer -- not accepted
  Coryphantha borwigii J.A. Purpus ex A. Berger -- not accepted
  Coryphantha bumamma (Ehrenb.) Britton & Rose -- not accepted
  Coryphantha bussleri (Mundt) Scheinvar -- not accepted
  Coryphantha calipensis Bravo ex S. Arias Montes, U. Guzman Cruz & S. Gama Lopez -- not accepted
  Coryphantha calochlora Boed. -- not accepted
  Coryphantha chaffeyi (Britton & Rose) Fosberg -- not accepted -- Chaffey's cory cactus
  Coryphantha chlorantha (Engelm.) Britton & Rose -- not accepted
  Coryphantha clavata (Scheidw.) Backeb. -- accepted
  Coryphantha clavata ssp. clavata (Scheidw.) Backeb. -- accepted
  Coryphantha clavata ssp. stipitata (Scheidw.) Dicht & A. Lüthy -- accepted
  Coryphantha columnaris Lahman -- not accepted
  Coryphantha compacta (Engelm.) Britton & Rose -- accepted
  Coryphantha conimamma (Linke) A. Berger -- not accepted
  Coryphantha connivens Britton & Rose -- not accepted
  Coryphantha cornifera (DC.) Lem. -- accepted -- Biznaga-partida de cuernos, rhinoceros cactus
  Coryphantha cornifera var. echinus (Engelm.) L.D. Benson -- not accepted -- rhinoceros cactus
  Coryphantha cornuta (Hildm. ex K.Schum.) A. Berger -- not accepted
  Coryphantha cubensis Britton & Rose -- not accepted
  Coryphantha cuencamensis L. Bremer -- not accepted
  Coryphantha dasyacantha (Engelm.) Orcutt -- not accepted
  Coryphantha dasyacantha var. varicolor (Tiegel) L.D. Benson -- not accepted
  Coryphantha delaetiana (Quehl) A. Berger -- accepted
  Coryphantha delicata L. Bremer -- accepted
  Coryphantha densispina Werderm. -- not accepted
  Coryphantha deserti (Engelm.) Britton & Rose -- not accepted
  Coryphantha difficilis (Quehl) Orcutt -- accepted
  Coryphantha duncanii (Hester) L.D. Benson -- not accepted -- Duncan's cory cactus
  Coryphantha durangensis (Runge ex K. Schum.) Britton & Rose -- accepted
  Coryphantha durangensis ssp. cuencamensis (L. Bremer) Dicht & A. Lüthy -- accepted
  Coryphantha durangensis ssp. durangensis (Runge ex K. Schum.) Britton & Rose -- accepted
  Coryphantha echinoidea (Quehl) Britton & Rose -- accepted
  Coryphantha echinus (Engelm.) Orcutt -- accepted
  Coryphantha elephantidens (Lem.) Lem. -- accepted
  Coryphantha elephantidens ssp. bumamma (Ehrenb.) Dicht & A. Lüthy -- accepted
  Coryphantha elephantidens ssp. elephantidens (Lem.) Lem. -- accepted
  Coryphantha elephantidens ssp. greenwoodii (Bravo) Dicht & A. Lüthy -- accepted
  Coryphantha erecta (Lem.) Lem. -- accepted
  Coryphantha garessii L. Bremer -- not accepted
  Coryphantha georgii Boed. -- accepted
  Coryphantha gladiispina (Boed.) A. Berger -- not accepted
  Coryphantha glanduligera (Otto & A. Dietr.) Lem. -- accepted
  Coryphantha glassii Dicht & A. Lüthy -- accepted
  Coryphantha gracilis L. Bremer & A.B. Lau -- accepted
  Coryphantha grandis L. Bremer -- not accepted
  Coryphantha grata L. Bremer -- not accepted
  Coryphantha greenwoodii Bravo -- not accepted
  Coryphantha guerkeana (Boed.) Britton & Rose -- not accepted
  Coryphantha henricksonii (Glass & R.A. Foster) Glass & R.A. Foster -- not accepted
  Coryphantha hesteri Y. Wright -- not accepted -- Hester's cory cactus
  Coryphantha hintoniorum Dicht & A. Lüthy -- accepted
  Coryphantha hintoniorum ssp. geoffreyi Dicht & A. Lüthy -- accepted
  Coryphantha hintoniorum ssp. hintoniorum Dicht & A. Lüthy -- accepted
  Coryphantha indensis L. Bremer -- not accepted
  Coryphantha jalpanensis Buchenau -- accepted
  Coryphantha kracikii Halda, Chalupa & Kupcák -- accepted
  Coryphantha laredoi Glass & R.A. Foster -- not accepted
  Coryphantha laui L. Bremer -- not accepted
  Coryphantha longicornis Boed. -- accepted
  Coryphantha macromeris (Engelm.) Lem. -- accepted -- Biznaga-partida partida, nipple beehive cactus
  Coryphantha macromeris ssp. macromeris (Engelm.) Lem. -- accepted
  Coryphantha macromeris ssp. runyonii (Britton & Rose) N.P. Taylor -- accepted
  Coryphantha macromeris var. runyonii (Britton & Rose) L.D. Benson -- not accepted -- Runyon's beehive cactus
  Coryphantha maiz-tablasensis Fritz Schwartz ex Backeb. -- accepted
  Coryphantha maliterrarum L. Bremer -- not accepted
  Coryphantha melleospina Bravo -- not accepted
  Coryphantha minima Baird -- not accepted -- Nellie Cory cactus
  Coryphantha missouriensis (Sweet) Britton & Rose -- not accepted
  Coryphantha missouriensis var. caespitosa (Engelm.) L.D. Benson -- not accepted
  Coryphantha missouriensis var. marstonii (Clover) L.D. Benson -- not accepted
  Coryphantha missouriensis var. robustior (Engelm.) L.D. Benson -- not accepted
  Coryphantha muehlenpfordtii (Poselg.) Britton & Rose -- not accepted
  Coryphantha muehlenpfordtii ssp. robustispina (A. Schott ex Engelm.) Dicht -- not accepted
  Coryphantha muehlenpfordtii var. robustispina (A. Schott ex Engelm.) W.T. Marshall -- not accepted
  Coryphantha neglecta L. Bremer -- accepted
  Coryphantha nellieae Croizat -- not accepted
  Coryphantha neoscheeri Backeb. -- not accepted
  Coryphantha nickelsiae (K. Brandegee) Britton & Rose -- accepted -- Biznaga-partida de Laredo, Nickels' cactus
  Coryphantha obscura Boed. -- not accepted
  Coryphantha octacantha (DC.) Britton & Rose -- accepted
  Coryphantha odorata Boed. -- accepted
  Coryphantha orcuttii (Boed.) Zimmerman -- not accepted
  Coryphantha organensis Zimmerman -- not accepted
  Coryphantha ottonis (Pfeiff.) Lem. -- accepted
  Coryphantha pallida Britton & Rose -- accepted
  Coryphantha pallida ssp. calipensis (Bravo ex S. Arias Montes, U. Guzman Cruz & S. Gama Lopez) R.F. Dicht & A. Lüthy -- accepted
  Coryphantha pallida ssp. pallida Britton & Rose -- accepted
  Coryphantha palmeri Britton & Rose -- not accepted
  Coryphantha panarottoi Halda & Horácek -- not accepted
  Coryphantha pectinata (Engelm.) Britton & Rose -- not accepted
  Coryphantha pirtlei Werderm. -- not accepted
  Coryphantha poselgeriana (A. Dietr.) Britton & Rose -- accepted
  Coryphantha potosiana (Jacobi) Glass & R.A. Foster -- accepted
  Coryphantha pseudoechinus Boed. -- accepted
  Coryphantha pseudoechinus ssp. laui (L. Bremer) Dicht & A. Lüthy -- accepted
  Coryphantha pseudoechinus ssp. pseudoechinus Boed. -- accepted
  Coryphantha pseudonickelsae Backeb. -- accepted
  Coryphantha pseudoradians Bravo -- not accepted
  Coryphantha pulleineana (Backeb.) Glass -- accepted
  Coryphantha pusilliflora L. Bremer -- not accepted
  Coryphantha pycnacantha (Mart.) Lem. -- accepted
  Coryphantha radians (DC.) Britton & Rose -- not accepted
  Coryphantha ramillosa Cutak -- accepted -- bunched cory cactus, whiskerbush
  Coryphantha ramillosa ssp. ramillosa Cutak -- accepted
  Coryphantha ramillosa ssp. santarosa Dicht & A. Lüthy -- accepted
  Coryphantha recurvata (Engelm.) Britton & Rose -- accepted -- Biznaga-partida de espinas curvas, Santa Cruz beehive cactus
  Coryphantha recurvispina (de Vriese) L. Bremer -- not accepted
  Coryphantha reduncuspina Boed. -- not accepted
  Coryphantha retusa (Pfeiff.) Britton & Rose -- accepted
  Coryphantha robbinsiorum (W.H. Earle) A.D. Zimmerman -- not accepted -- Cochise pincushion cactus
  Coryphantha robbinsorum (W.H. Earle) A.D. Zimmerman -- not accepted -- Cochise pincushion cactus
  Coryphantha robertii A. Berger -- not accepted
  Coryphantha robustispina (A. Schott ex Engelm.) Britton & Rose -- accepted -- Biznaga-partida de espinas gruesas
  Coryphantha robustispina ssp. robustispina (A. Schott ex Engelm.) Britton & Rose -- accepted
  Coryphantha robustispina ssp. scheeri (Lem.) N.P. Taylor -- accepted
  Coryphantha robustispina ssp. uncinata (L.D. Benson) N.P. Taylor -- not accepted
  Coryphantha roederiana Boed. -- not accepted
  Coryphantha runyonii Britton & Rose -- not accepted
  Coryphantha salinensis (Poselg.) Dicht & A. Lüthy -- accepted
  Coryphantha salm-dyckiana (Scheer) Britton & Rose -- not accepted
  Coryphantha scheeri (Muehlenpf.) L.D. Benson -- not accepted -- beehive coryphantha, Biznaga-partida mula, Scheer's beehive cactus
  Coryphantha scheeri var. robustispina (A. Schott ex Engelm.) L.D. Benson -- not accepted -- longtubercle beehive cactus, Pima pineapple cactus
  Coryphantha scheeri var. uncinata L.D. Benson -- not accepted -- Scheer's beehive cactus
  Coryphantha schwarziana Boed. -- not accepted
  Coryphantha similis (Engelm.) Britton & Rose -- not accepted
  Coryphantha sneedii (Britton & Rose) A. Berger -- not accepted -- Sneed pincushion cactus
  Coryphantha sneedii var. leei (Rose ex Boed.) L.D. Benson -- not accepted -- Lee pincushion cactus
  Coryphantha speciosa Boed. -- not accepted
  Coryphantha strobiliformis (Poselg.) Orcutt -- not accepted
  Coryphantha strobiliformis var. durispina (Quehl) L.D. Benson -- not accepted
  Coryphantha strobiliformis var. orcuttii (Boed.) L.D. Benson -- not accepted
  Coryphantha sulcata (Engelm.) Britton & Rose -- accepted -- finger cactus, pineapple cactus
  Coryphantha sulcata var. nickelsiae (K. Brandegee) L.D. Benson -- not accepted -- Nickels' cory cactus
  Coryphantha tripugionacantha A.B. Lau -- accepted
  Coryphantha unicornis Boed. -- not accepted
  Coryphantha valida (J.A. Purpus) L. Bremer -- not accepted
  Coryphantha vaupeliana Boed. -- accepted
  Coryphantha villarensis Backeb. -- not accepted
  Coryphantha vivipara (Nutt.) Britton & Rose -- not accepted
  Coryphantha vivipara var. aggregata (Engelm.) W.T. Marshall -- not accepted
  Coryphantha vivipara var. alversonii (J.M. Coult.) L.D. Benson -- not accepted -- Alverson's foxtail cactus
  Coryphantha vogtherriana Werderm. & Boed. -- accepted
  Coryphantha wohlschlageri Holzeis -- accepted
  Coryphantha zilziana Boed. -- not accepted
  Cryptocereus Alexander -- not accepted
  Cryptocereus anthonyanus Alexander -- not accepted
  Cryptocereus imitans (Kimnach & Hutchison) Backeb. -- not accepted
  Cryptocereus rosei (Kimnach) Backeb. -- not accepted
  Cumarinia (F.M. Knuth) Buxb. -- not accepted
  Cumarinia odorata (Boed.) Buxb. -- not accepted
  Cumulopuntia F. Ritter -- accepted
  Cumulopuntia alboareolata (F. Ritter) F. Ritter -- not accepted
  Cumulopuntia berteroi (Colla) F. Ritter -- not accepted
  Cumulopuntia boliviana (Salm-Dyck) F. Ritter -- accepted
  Cumulopuntia boliviana ssp. boliviana (Salm-Dyck) F. Ritter -- accepted
  Cumulopuntia boliviana ssp. dactylifera (Vaupel) D.R. Hunt -- accepted
  Cumulopuntia boliviana ssp. echinacea (F. Ritter) D.R. Hunt -- accepted
  Cumulopuntia boliviana ssp. ignescens (Vaupel) D.R. Hunt -- accepted
  Cumulopuntia chichensis (Cárdenas) E.F. Anderson -- accepted
  Cumulopuntia corotilla (K. Schum. ex Vaupel) E.F. Anderson -- not accepted
  Cumulopuntia crassicylindrica (Rauh & Backeb.) F. Ritter ex Eggli -- not accepted
  Cumulopuntia dactylifera (Vaupel) E.F. Anderson -- not accepted
  Cumulopuntia echinacea (F. Ritter) F. Ritter -- not accepted
  Cumulopuntia famatinensis F. Ritter -- not accepted
  Cumulopuntia frigida F. Ritter -- not accepted
  Cumulopuntia fulvicoma (Rauh & Backeb.) E.F. Anderson -- not accepted
  Cumulopuntia galerasensis F. Ritter -- not accepted
  Cumulopuntia hystrix F. Ritter -- not accepted
  Cumulopuntia ignescens (Vaupel) F. Ritter -- not accepted
  Cumulopuntia ignota (Britton & Rose) F. Ritter -- not accepted
  Cumulopuntia kuehnrichiana (Werderm. & Backeb.) F. Ritter -- not accepted
  Cumulopuntia mistiensis (Backeb.) E.F. Anderson -- not accepted
  Cumulopuntia multiareolata (F. Ritter) F. Ritter -- not accepted
  Cumulopuntia pampana F. Ritter -- not accepted
  Cumulopuntia pyrrhacantha (K. Schum.) F. Ritter -- not accepted
  Cumulopuntia rauppiana (K. Schum.) F. Ritter -- not accepted
  Cumulopuntia recurvata Gilmer & H.P. Thomas -- not accepted
  Cumulopuntia rossiana (Heinrich & Backeb.) F. Ritter -- accepted
  Cumulopuntia sphaerica (C.F. Först.) E.F. Anderson -- accepted
  Cumulopuntia subterranea (R.E. Fr.) F. Ritter -- not accepted
  Cumulopuntia ticnamarensis F. Ritter -- not accepted
  Cumulopuntia tortispina F. Ritter -- not accepted
  Cumulopuntia tubercularis F. Ritter -- not accepted
  Cumulopuntia tumida F. Ritter -- not accepted
  Cumulopuntia unguispina (Backeb.) F. Ritter -- not accepted
  Cumulopuntia zehnderi (Rauh & Backeb.) F. Ritter -- not accepted
  Cylindropuntia (Engelm.) F.M. Knuth -- accepted
  Cylindropuntia abyssi (Hester) Backeb. -- accepted -- Peach Springs cholla
  Cylindropuntia acanthocarpa (Engelm. & J.M. Bigelow) F.M. Knuth -- accepted
  Cylindropuntia acanthocarpa ssp. acanthocarpa (Engelm. & J.M. Bigelow) F.M. Knuth -- accepted
  Cylindropuntia acanthocarpa ssp. coloradensis (L.D. Benson) U. Guzmán -- accepted
  Cylindropuntia acanthocarpa ssp. major (Engelm. & J.M. Bigelow) U. Guzmán -- accepted
  Cylindropuntia acanthocarpa var. thornberi (Thornber & Bonker) Backeb. -- accepted
  Cylindropuntia alamosensis (Britton & Rose) Backeb. -- not accepted
  Cylindropuntia alcahes (F.A.C. Weber) F.M. Knuth -- accepted
  Cylindropuntia alcahes var. alcahes (F.A.C. Weber) F.M. Knuth -- accepted
  Cylindropuntia alcahes var. burrageana (Britton & Rose) Rebman -- accepted
  Cylindropuntia anteojoensis (Pinkava) E.F. Anderson -- accepted
  Cylindropuntia arbuscula (Engelm.) F.M. Knuth -- accepted
  Cylindropuntia bigelovii (Engelm.) F.M. Knuth -- accepted
  Cylindropuntia bigelovii var. bigelovii (Engelm.) F.M. Knuth -- accepted
  Cylindropuntia bigelovii var. ciribe (Engelm. ex J.M. Coult.) Rebman -- accepted
  Cylindropuntia brevispina (H.E. Gates) Backeb. -- not accepted
  Cylindropuntia brittonii (J.G. Ortega) Backeb. -- not accepted
  Cylindropuntia burrageana (Britton & Rose) Backeb. -- not accepted
  Cylindropuntia californica (Torr. & A. Gray) F.M. Knuth -- accepted
  Cylindropuntia californica var. californica (Torr. & A. Gray) F.M. Knuth -- accepted
  Cylindropuntia californica var. delgadilloana (Rebman & Pinkava) Rebman -- accepted
  Cylindropuntia californica var. parkeri (J.M. Coult.) Pinkava -- accepted
  Cylindropuntia californica var. rosarica (G.E. Linds.) Rebman -- accepted
  Cylindropuntia calmalliana (J.M. Coult.) F.M. Knuth -- not accepted
  Cylindropuntia caribaea (Britton & Rose) F.M. Knuth -- accepted
  Cylindropuntia cholla (F.A.C. Weber) F.M. Knuth -- accepted
  Cylindropuntia ciribe (Engelm.) F.M. Knuth -- not accepted
  Cylindropuntia clavellina (Engelm. ex J.M. Coult.) F.M. Knuth -- not accepted
  Cylindropuntia davisii (Engelm. & J.M. Bigelow) F.M. Knuth -- accepted
  Cylindropuntia delgadilloana Rebman & Pinkava -- not accepted
  Cylindropuntia echinocarpa (Engelm. & J.M. Bigelow) F.M. Knuth -- accepted
  Cylindropuntia fulgida (Engelm.) F.M. Knuth -- accepted
  Cylindropuntia fulgida var. fulgida (Engelm.) F.M. Knuth -- accepted
  Cylindropuntia fulgida var. mamillata (A. Schott ex Engelm.) Backeb. -- accepted
  Cylindropuntia ganderi (C.B. Wolf) Rebman & Pinkava -- accepted
  Cylindropuntia haematacantha Backeb. -- not accepted
  Cylindropuntia hualpaensis (Hester) Backeb. -- not accepted
  Cylindropuntia humahuacana Backeb. -- not accepted
  Cylindropuntia hystrix (Griseb.) Areces -- accepted
  Cylindropuntia imbricata (Haw.) F.M. Knuth -- accepted
  Cylindropuntia imbricata var. argentea (M.S. Anthony) Backeb. -- accepted
  Cylindropuntia imbricata var. imbricata (Haw.) F.M. Knuth -- accepted
  Cylindropuntia intermedia (Rauh & Backeb.) Rauh & Backeb. -- not accepted
  Cylindropuntia kleiniae (DC.) F.M. Knuth -- accepted
  Cylindropuntia leptocaulis (DC.) F.M. Knuth -- accepted -- Christmas cactus, tasajillo, tesajo cactus
  Cylindropuntia lindsayi (Rebman) Rebman -- accepted
  Cylindropuntia lloydii (Rose) F.M. Knuth -- not accepted
  Cylindropuntia metuenda (Pittier) Backeb. -- not accepted
  Cylindropuntia molesta (Brandegee) F.M. Knuth -- accepted
  Cylindropuntia munzii (C.B. Wolf) Backeb. -- accepted
  Cylindropuntia pallida (Rose) F.M. Knuth -- accepted
  Cylindropuntia parryi (Engelm.) F.M. Knuth -- not accepted
  Cylindropuntia prolifera (Engelm.) F.M. Knuth -- accepted
  Cylindropuntia ramosissima (Engelm.) F.M. Knuth -- accepted
  Cylindropuntia recondita (Griffiths) F.M. Knuth -- not accepted
  Cylindropuntia rosarica (G.E. Linds.) Backeb. -- not accepted
  Cylindropuntia rosea (DC.) Backeb. -- accepted
  Cylindropuntia sanfelipensis (Rebman) Rebman -- accepted
  Cylindropuntia santamaria (E.M. Baxter) Rebman -- accepted
  Cylindropuntia spinosior (Engelm.) F.M. Knuth -- accepted
  Cylindropuntia teres (Cels ex F.A.C. Weber) Backeb. -- not accepted
  Cylindropuntia tesajo (Engelm. ex J.M. Coult.) F.M. Knuth -- accepted
  Cylindropuntia thurberi (Engelm.) F.M. Knuth -- accepted
  Cylindropuntia tunicata (Lehm.) F.M. Knuth -- accepted
  Cylindropuntia versicolor (Engelm. ex J.M. Coult.) F.M. Knuth -- accepted
  Cylindropuntia weingartiana (Backeb.) Backeb. -- not accepted
  Cylindropuntia whipplei (Engelm. & J.M. Bigelow) F.M. Knuth -- accepted
  Cylindropuntia wigginsii (L.D. Benson) H. Rob. -- not accepted
  Cylindropuntia wolfii (L.D. Benson) M.A. Baker -- accepted
  Cylindropuntia X deserta (Griffiths) Pinkava -- accepted
  Cylindropuntia X fosbergii (C.B. Wolf) Rebman, M.A. Baker & Pinkava -- accepted
  Cylindropuntia X kelvinensis (V.E. Grant & K.A. Grant) P.V. Heath -- accepted
  Cylindropuntia X multigeniculata (Clokey) Backeb. -- accepted
  Cylindropuntia X munzii (C.B. Wolf) Backeb. -- not accepted
  Cylindropuntia X neoarbuscula (Griffiths) Backeb. & F.M. Knuth -- accepted
  Cylindropuntia X tetracantha (Toumey) F.M. Knuth -- accepted
  Cylindropuntia X viridiflora (Britton & Rose) F.M. Knuth -- accepted
  Cylindropuntia X vivipara (Rose) F.M. Knuth -- accepted
  Deamia Britton & Rose -- not accepted
  Deamia diabolica Clover -- not accepted
  Deamia testudo (Karw. ex Zucc.) Britton & Rose -- not accepted
  Delaetia Backeb. -- not accepted
  Delaetia woutersiana Backeb. -- not accepted
  Dendrocereus Britton & Rose -- accepted
  Dendrocereus nudiflorus (Engelm. ex Sauvalle) Britton & Rose -- accepted
  Dendrocereus undulosus (DC.) Britton & Rose -- accepted
  Denmoza Britton & Rose -- accepted
  Denmoza erythrocephalus (K. Schum.) A. Berger -- not accepted
  Denmoza rhodacantha (Salm-Dyck) Britton & Rose -- accepted
  Digitostigma Velazco & Nevárez -- not accepted
  Digitostigma caput-medusae Velazco & Nevárez -- not accepted
  Discocactus Pfeiff. -- accepted
  Discocactus albispinus Buining & Brederoo -- not accepted
  Discocactus araneispinus Buining ex Brederoo -- not accepted
  Discocactus araneispinus S. Theun. -- not accepted
  Discocactus bahiensis Britton & Rose -- accepted
  Discocactus bahiensis ssp. subviridigriseus (Buining ex Brederoo) P.J. Braun & Esteves -- not accepted
  Discocactus boliviensis Backeb. -- accepted
  Discocactus boomianus Buining & Brederoo -- not accepted
  Discocactus buenekeri W.R. Abraham -- not accepted
  Discocactus cangaensis Diers & Esteves -- not accepted
  Discocactus catingicola Buining & Brederoo -- accepted
  Discocactus catingicola ssp. rapirhizua (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Discocactus catingicola var. griseus (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Discocactus cephaliaciculosus Buining & Brederoo ex P.J. Braun & Esteves -- not accepted
  Discocactus cephaliaciculosus ssp. nudicephalus P.J. Braun & Esteves -- not accepted
  Discocactus crassispinus P.J. Braun & Esteves -- not accepted
  Discocactus crystallophilus Diers & Esteves -- not accepted
  Discocactus diersianus Esteves -- accepted
  Discocactus estevesii Diers -- not accepted
  Discocactus ferricola Buining & Brederoo -- accepted
  Discocactus flavispinus Buining & Brederoo -- not accepted
  Discocactus goianus Diers & Esteves -- not accepted
  Discocactus griseus Buining & Brederoo -- not accepted
  Discocactus hartmannii (K. Schum.) Britton & Rose -- accepted
  Discocactus hartmannii var. magnimammus (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Discocactus hartmannii var. patulifolius (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Discocactus heptacanthus (Barb. Rodr.) Britton & Rose -- accepted
  Discocactus heptacanthus ssp. catingicola (Buining & Brederoo) N.P. Taylor & Zappi -- not accepted
  Discocactus heptacanthus ssp. magnimammus (Buining & Brederoo) N.P. Taylor & Zappi -- not accepted
  Discocactus horstii Buining & Brederoo -- accepted
  Discocactus latispinus Buining ex Brederoo -- not accepted
  Discocactus lindaianus Diers & Esteves -- not accepted
  Discocactus magnimammus Buining & Brederoo -- not accepted
  Discocactus magnimammus ssp. bonitoensis Buining & Brederoo -- not accepted
  Discocactus mamillosus Buining & Brederoo -- not accepted
  Discocactus melanochlorus Buining ex Brederoo -- not accepted
  Discocactus multicolorispinus P.J. Braun & Brederoo -- not accepted
  Discocactus nigrisaetosus Buining ex Brederoo -- not accepted
  Discocactus pachythele Buining & Brederoo -- not accepted
  Discocactus patulifolius Buining & Brederoo -- not accepted
  Discocactus piauiensis P.J. Braun & Esteves -- not accepted
  Discocactus placentiformis (Lehm.) K. Schum. -- accepted
  Discocactus promentigibbus Diers & Esteves -- not accepted
  Discocactus pseudoinsignis N.P. Taylor & Zappi -- accepted
  Discocactus pseudolatispinus Diers & Esteves -- not accepted
  Discocactus pugionacanthus Buining ex Brederoo -- not accepted
  Discocactus rapirhizus Buining & Brederoo -- not accepted
  Discocactus semicampaniflorus Buining & Brederoo -- not accepted
  Discocactus silicicola Buining & Brederoo -- not accepted
  Discocactus silvaticus Buining ex Brederoo -- not accepted
  Discocactus spinosior Buining ex Brederoo -- not accepted
  Discocactus squamibaccatus Buining ex Brederoo -- not accepted
  Discocactus subviridigriseus Buining ex Brederoo -- not accepted
  Discocactus tricornis Monv. ex Pfeiff. -- not accepted
  Discocactus zehntneri Britton & Rose -- accepted
  Discocactus zehntneri ssp. boomianus (Buining, Brederoo ex Buining) N.P. Taylor & Zappi -- accepted
  Discocactus zehntneri ssp. zehntneri Britton & Rose -- accepted
  Disocactus Lindl. -- accepted
  Disocactus ackermannii (Haw.) Barthlott -- accepted
  Disocactus ackermannii ssp. ackermannii (Haw.) Barthlott -- accepted
  Disocactus ackermannii ssp. conzattianus (T. MacDoug.) Ralf Bauer -- accepted
  Disocactus acuminatus (Cufod.) Kimnach -- not accepted
  Disocactus alatus (Sw.) Kimnach -- not accepted
  Disocactus amazonicus (K. Schum.) D.R. Hunt -- not accepted
  Disocactus aurantiacus (Kimnach) Barthlott -- not accepted
  Disocactus biformis (Lindl.) Lindl. -- accepted
  Disocactus cinnabarinus (Weing.) Barthlott -- not accepted
  Disocactus eichlamii (Weing.) Britton & Rose -- accepted
  Disocactus flagelliformis (L.) Barthlott -- accepted
  Disocactus himantocladus (Rol.-Goss.) Kimnach -- not accepted
  Disocactus horichii Kimnach -- not accepted
  Disocactus kimnachii G.D. Rowley -- accepted
  Disocactus lankesteri Kimnach -- not accepted
  Disocactus macdougallii (Alexander) Barthlott -- accepted
  Disocactus macranthus (Alexander) Kimnach & Hutchison -- accepted
  Disocactus martianus (Zucc.) Barthlott -- accepted
  Disocactus nelsonii (Britton & Rose) Linding. -- accepted
  Disocactus nelsonii ssp. hondurensis (Kimnach) Doweld -- accepted
  Disocactus nelsonii ssp. nelsonii (Britton & Rose) Linding. -- accepted
  Disocactus phyllanthoides (DC.) Barthlott -- accepted
  Disocactus quezaltecus (Standl. & Steyerm.) Kimnach -- accepted
  Disocactus ramulosus (Salm-Dyck) Kimnach -- not accepted
  Disocactus schrankii (Seitz) Barthlott -- not accepted
  Disocactus speciosus (Cav.) Barthlott -- accepted
  Disocactus speciosus ssp. aurantiacus (Kimnach) Ralf Bauer -- accepted
  Disocactus speciosus ssp. blomianus (Kimnach) Ralf Bauer -- accepted
  Disocactus speciosus ssp. cinnabarinus (Weing.) Ralf Bauer -- accepted
  Disocactus speciosus ssp. speciosus (Cav.) Barthlott -- accepted
  Dolichothele (K. Schum.) Britton & Rose -- not accepted
  Dolichothele albescens (Tiegel) Backeb. -- not accepted
  Dolichothele balsasoides (R.T. Craig) Backeb. -- not accepted
  Dolichothele baumii (Boed.) Backeb. -- not accepted
  Dolichothele beneckei (Ehrenb.) Backeb. -- not accepted
  Dolichothele longimamma (DC.) Britton & Rose -- not accepted
  Dolichothele nelsonii (Britton & Rose) Backeb. -- not accepted
  Dolichothele sphaerica (A. Dietr.) Britton & Rose -- not accepted
  Dolichothele surculosa (Boed.) Backeb. -- not accepted
  Dolichothele uberiformis (Zucc. ex Pfeiff.) Britton & Rose -- not accepted
  Dolichothele zephyranthoides (Scheidw.) Backeb. -- not accepted
  Eccremocactus Britton & Rose -- not accepted
  Eccremocactus bradei Britton & Rose -- not accepted
  Eccremocactus imitans (Kimnach & Hutchison) Kimnach -- not accepted
  Eccremocactus rosei Kimnach -- not accepted
  Echinocactus Link & Otto -- accepted -- barrel cactus
  Echinocactus acanthodes Lem. -- not accepted
  Echinocactus aspillagae Söhrens -- not accepted
  Echinocactus asterias Zucc. -- not accepted
  Echinocactus bicolor Galeotti ex Pfeiff. -- not accepted
  Echinocactus bicolor var. schottii Engelm. -- not accepted
  Echinocactus brevihamatus Engelm. -- not accepted
  Echinocactus bulbocalyx Werderm. -- not accepted
  Echinocactus chilensis Hildm. ex K. Schum. -- not accepted
  Echinocactus cinnabarinus Hook. -- not accepted
  Echinocactus conoideus (DC.) Poselg. -- not accepted
  Echinocactus coquimbanus Karw. ex Rümpler -- not accepted
  Echinocactus erectocentrus J.M. Coult. -- not accepted
  Echinocactus famatimensis Speg. -- not accepted
  Echinocactus fiedlerianus K. Schum. -- not accepted
  Echinocactus flavidispinus (Backeb.) D. Weniger -- not accepted
  Echinocactus formosus Pfeiff. -- not accepted
  Echinocactus glaucus K. Schum. -- not accepted
  Echinocactus glaucus Karw. ex Pfeiff. -- not accepted
  Echinocactus grandis Rose -- not accepted
  Echinocactus grusonii Hildm. -- accepted
  Echinocactus haematanthus Speg. -- not accepted
  Echinocactus hamatacanthus Muehlenpf. -- not accepted
  Echinocactus hartmannii K. Schum. -- not accepted
  Echinocactus horizonthalonius Lem. -- accepted -- Biznaga-tonelmancamula, devilshead, silverbell cactus, Turk's head cactus
  Echinocactus horizonthalonius var. moelleri F. Haage -- not accepted
  Echinocactus humilis Phil. -- not accepted
  Echinocactus intertextus Engelm. -- not accepted
  Echinocactus intertextus var. dasyacanthus Engelm. -- not accepted
  Echinocactus johnsonii Parry ex Engelm. -- not accepted
  Echinocactus johnsonii var. lutescens Parish -- not accepted
  Echinocactus lecontei Engelm. -- not accepted
  Echinocactus mariposensis (Hester) D. Weniger -- not accepted
  Echinocactus myriostigma ssp. coahuilensis H. Moeller -- not accepted
  Echinocactus palmeri Rose -- not accepted
  Echinocactus papyracanthus (Engelm.) Engelm. -- not accepted
  Echinocactus parryi Engelm. -- accepted
  Echinocactus peeblesianus (Croizat) L.D. Benson -- not accepted
  Echinocactus platyacanthus Link & Otto -- accepted
  Echinocactus polyancistrus Engelm. & J.M. Bigelow -- not accepted
  Echinocactus polycephalus Engelm. & J.M. Bigelow -- accepted -- Biznaga-tonel amacollada, cottontop barrel cactus, cottontop cactus
  Echinocactus polycephalus ssp. polycephalus Engelm. & J.M. Bigelow -- accepted
  Echinocactus polycephalus ssp. xeranthemoides (J.M. Coult.) N.P. Taylor -- accepted
  Echinocactus polycephalus var. polycephalus Engelm. & J.M. Bigelow -- not accepted -- cottontop cactus
  Echinocactus poselgerianus A. Dietr. -- not accepted
  Echinocactus pubispinus Engelm. -- not accepted
  Echinocactus rhodacanthus Salm-Dyck -- not accepted
  Echinocactus ritteri Boed. -- not accepted
  Echinocactus roseanus Boed. -- not accepted
  Echinocactus salinensis Poselg. -- not accepted
  Echinocactus scheeri Salm-Dyck -- not accepted
  Echinocactus schmiedickeanus Boed. -- not accepted
  Echinocactus senilis Phil. -- not accepted
  Echinocactus setispinus Engelm. -- not accepted
  Echinocactus setispinus var. hamatus (Muehlenpf.) Engelm. -- not accepted
  Echinocactus sileri Engelm. ex J.M. Coult. -- not accepted
  Echinocactus simpsonii Engelm. -- not accepted
  Echinocactus simpsonii var. robustior J.M. Coult. -- not accepted
  Echinocactus sinuatus A. Dietr. -- not accepted
  Echinocactus spiniflorus K. Schum. -- not accepted
  Echinocactus subglacus Rydb. -- not accepted
  Echinocactus taltalensis Werderm. -- not accepted
  Echinocactus texensis Hopffer -- accepted -- Biznaga-tonel manca caballo, devil's pincushion, horse crippler
  Echinocactus thionanthus Speg. -- not accepted
  Echinocactus uncinatus Galeotti ex Pfeiff. -- not accepted
  Echinocactus unguispinus Engelm. -- not accepted
  Echinocactus viridescens Torr. & A. Gray -- not accepted
  Echinocactus warnockii (L.D. Benson) D. Weniger -- not accepted
  Echinocactus whipplei Engelm. & J.M. Bigelow -- not accepted
  Echinocactus whipplei var. glaucus (K. Schum.) J.A. Purpus -- not accepted
  Echinocactus whipplei var. intermedius (Peebles) L.D. Benson -- not accepted
  Echinocactus whipplei var. spinosior Engelm. -- not accepted
  Echinocactus wislizeni Engelm. -- not accepted
  Echinocactus xeranthemoides (J.M. Coult.) Engelm. ex Rydb. -- not accepted
  Echinocactus xeranthemoides Engelm. ex J.M. Coult. -- not accepted
  Echinocereus Engelm. -- accepted -- hedgehog cactus
  Echinocereus abbeae S.H. Parsons -- not accepted
  Echinocereus acifer (Otto ex Salm-Dyck) Lem. -- accepted
  Echinocereus acifer ssp. acifer (Otto ex Salm-Dyck) Lem. -- accepted
  Echinocereus acifer ssp. huitcholensis (F.A.C. Weber) Mich. Lange -- accepted
  Echinocereus adustus Engelm. -- accepted
  Echinocereus adustus ssp. adustus Engelm. -- accepted
  Echinocereus adustus ssp. bonatzii (R.C. Römer) N.P. Taylor -- not accepted
  Echinocereus adustus ssp. roemerianus W. Rischer -- not accepted
  Echinocereus adustus ssp. schwarzii (A.B. Lau) N.P. Taylor -- accepted
  Echinocereus albatus Backeb. -- not accepted
  Echinocereus albispinus Lahman -- not accepted
  Echinocereus amoenus (A. Dietr.) K. Schum. -- not accepted
  Echinocereus angusticeps Clover -- not accepted
  Echinocereus apachensis W. Blum & Rutow -- accepted
  Echinocereus arizonicus Rose ex Orcutt -- accepted
  Echinocereus baileyi Rose -- not accepted
  Echinocereus baileyi var. albispinus (Lahman) Backeb. -- not accepted
  Echinocereus barthelowanus Britton & Rose -- accepted
  Echinocereus berlandieri (Engelm.) J.N. Haage -- accepted -- Berlandier's hedgehog cactus, Órgano-pequeño de Berlandier
  Echinocereus berlandieri var. angusticeps (Clover) L.D. Benson -- not accepted
  Echinocereus berlandieri var. blankii (Poselg.) P. Fourn. -- not accepted
  Echinocereus berlandieri var. papillosus (Linke ex Rümpler) L.D. Benson -- not accepted
  Echinocereus blankii (Poselg.) F. Palmer -- not accepted
  Echinocereus blankii var. angusticeps (Clover) L.D. Benson -- not accepted
  Echinocereus bonatzii R.C. Römer -- not accepted
  Echinocereus bonkerae Thornber & Bonker -- accepted
  Echinocereus boyce-thompsonii Orcutt -- not accepted
  Echinocereus brandegeei (J.M. Coult.) K. Schum. -- accepted
  Echinocereus bristolii W.T. Marshall -- accepted
  Echinocereus bristolii var. pseudopectinatus N.P. Taylor -- not accepted
  Echinocereus caespitosus (Engelm.) Engelm. -- not accepted
  Echinocereus caespitosus var. minor (Engelm.) D. Weniger -- not accepted
  Echinocereus caespitosus var. perbellus (Britton & Rose) D. Weniger -- not accepted
  Echinocereus caespitosus var. purpureus (Lahman) D. Weniger -- not accepted
  Echinocereus canyonensis Clover & Jotter -- not accepted
  Echinocereus chisoensis W.T. Marshall -- not accepted -- chisos lace cactus, Chisos Mountain hedgehog cactus, Órgano-pequeño chiso
  Echinocereus chisosensis W.T. Marshall -- accepted
  Echinocereus chisosensis ssp. chisosensis W.T. Marshall -- accepted -- Chisos Mountain hedgehog cactus
  Echinocereus chisosensis ssp. fobeanus (Oehme) N.P. Taylor -- accepted
  Echinocereus chloranthus (Engelm.) J.N. Haage -- not accepted -- brownspine hedgehog cactus, Órgano-pequeño de flor verde
  Echinocereus chloranthus var. neocapillus D. Weniger -- not accepted -- brownspine hedgehog cactus, golden-spined hedgehog cactus
  Echinocereus chloranthus var. russanthus (D. Weniger) Lamb. ex G.D. Rowley -- not accepted -- brownspine hedgehog cactus
  Echinocereus chlorophthalmus (Hook.) Britton & Rose -- not accepted
  Echinocereus cinerascens (DC.) H.P. Kelsey & Dayton -- accepted
  Echinocereus cinerascens ssp. cinerascens (DC.) H.P. Kelsey & Dayton -- accepted
  Echinocereus cinerascens ssp. septentrionalis (N.P. Taylor) N.P. Taylor -- accepted
  Echinocereus cinerascens ssp. tulensis (Bravo) N.P. Taylor -- accepted
  Echinocereus cinerascens var. ehrenbergii (Pfeiff.) Bravo -- not accepted
  Echinocereus coccineus Engelm. -- accepted -- Órgano-pequeño de espinas escarlatas, scarlet hedgehog cactus
  Echinocereus coccineus ssp. coccineus Engelm. -- accepted
  Echinocereus coccineus ssp. mojavensis (Engelm. & J.M. Bigelow) N.P. Taylor -- not accepted
  Echinocereus coccineus ssp. paucispinus (Engelm.) W. Blum, Mich. Lange & Rutow -- accepted
  Echinocereus coccineus var. conoideus (Engelm.) D. Weniger -- not accepted
  Echinocereus coccineus var. inermis (K. Schum.) J.A. Purpus -- not accepted
  Echinocereus coccineus var. rosei (Wooton & Standl.) A.D. Zimmerman -- not accepted
  Echinocereus ctenoides (Engelm.) Rümpler -- not accepted
  Echinocereus dasyacanthus Engelm. -- accepted -- Órgano-pequeño arcoiris de Texas, spiny hedgehog cactus
  Echinocereus dasyacanthus var. hildmannii (Arendt) D. Weniger -- not accepted
  Echinocereus davisii Houghton -- accepted
  Echinocereus decumbens Clover & Jotter -- not accepted
  Echinocereus delaetii Gürke -- not accepted
  Echinocereus dubius (Engelm.) Engelm. ex Rümpler -- not accepted
  Echinocereus durangensis Poselg. ex Rümpler -- not accepted
  Echinocereus engelmannii (Parry ex Engelm.) Lem. -- accepted -- Engelmann's hedgehog cactus, Órgano-pequeño fresa, strawberry cactus
  Echinocereus engelmannii var. decumbens (Clover & Jotter) L.D. Benson -- not accepted
  Echinocereus engelmannii var. nicholii L.D. Benson -- not accepted
  Echinocereus enneacanthus Engelm. -- accepted -- Órgano-pequeño alicoche real, pitaya, smallspine pitaya
  Echinocereus enneacanthus ssp. brevispinus (W.O. Moore) N.P. Taylor -- accepted
  Echinocereus enneacanthus ssp. enneacanthus Engelm. -- accepted
  Echinocereus enneacanthus var. carnosus (Rümpler) Quehl -- not accepted
  Echinocereus enneacanthus var. dubius (Engelm.) L.D. Benson -- not accepted
  Echinocereus enneacanthus var. stramineus (Engelm.) L.D. Benson -- not accepted
  Echinocereus fasciculatus (Engelm. ex B.D. Jacks.) L.D. Benson -- accepted -- Órgano-pequeño de manojos
  Echinocereus fasciculatus ssp. bonkerae (Thornber & Bonker) N.P. Taylor -- not accepted
  Echinocereus fasciculatus ssp. boyce-thompsonii (Orcutt) N.P. Taylor -- not accepted
  Echinocereus fasciculatus ssp. fasciculatus (Engelm. ex B.D. Jacks.) L.D. Benson -- not accepted
  Echinocereus fasciculatus var. bonkerae (Thornber & Bonker) L.D. Benson -- not accepted
  Echinocereus fasciculatus var. boyce-thompsonii (Orcutt) L.D. Benson -- not accepted
  Echinocereus fendleri (Engelm.) Sencke ex J.N. Haage -- accepted
  Echinocereus fendleri ssp. fendleri (Engelm.) Sencke ex J.N. Haage -- accepted
  Echinocereus fendleri ssp. rectispinus (Peebles) N.P. Taylor -- accepted
  Echinocereus fendleri var. robustus (Peebles) L.D. Benson -- not accepted
  Echinocereus ferreirianus H.E. Gates -- accepted
  Echinocereus ferreirianus ssp. ferreirianus H.E. Gates -- accepted
  Echinocereus ferreirianus ssp. lindsayi (J. Meyrán) N.P. Taylor -- accepted
  Echinocereus fitchii Britton & Rose -- not accepted
  Echinocereus floresii Backeb. -- not accepted
  Echinocereus fobeanus Oehme -- not accepted
  Echinocereus freudenbergii G. Frank -- accepted
  Echinocereus gentryi Clover -- not accepted
  Echinocereus glycimorphus C.F. Först. ex Rümpler -- not accepted
  Echinocereus grandis Britton & Rose -- accepted
  Echinocereus hancockii E.Y. Dawson -- not accepted
  Echinocereus hempelii Fobe -- not accepted
  Echinocereus hexaedrus (Engelm. & J.M. Bigelow) Rümpler -- not accepted
  Echinocereus hildmannii Arendt -- not accepted
  Echinocereus huitcholensis (F.A.C. Weber) Gürke -- not accepted
  Echinocereus klapperi W. Blum -- accepted
  Echinocereus klapperi ssp. bacanorensis W. Rischer -- not accepted
  Echinocereus knippelianus Liebm. -- accepted
  Echinocereus knippelianus var. kruegeri Glass & R.A. Foster -- not accepted
  Echinocereus knippelianus var. reyesii A.B. Lau -- not accepted
  Echinocereus kroenleinii (Mich. Lange) W. Blum & Waldeis -- not accepted
  Echinocereus kuenzleri Castetter, P. Pierce & K.H. Schwer. -- not accepted
  Echinocereus kunzei Gürke -- not accepted
  Echinocereus laui G. Frank -- accepted
  Echinocereus ledingii Peebles -- accepted
  Echinocereus leonensis Mathsson -- not accepted
  Echinocereus leptacanthus K. Schum. -- not accepted
  Echinocereus leucanthus N.P. Taylor -- accepted
  Echinocereus lindsayi J. Meyrán -- not accepted
  Echinocereus llanuraensis (Rutow) W. Blum & D. Felix -- not accepted
  Echinocereus longisetus (Engelm.) Rümpler -- accepted
  Echinocereus longisetus ssp. delaetii (Gürke) N.P. Taylor -- accepted
  Echinocereus longisetus ssp. longisetus (Engelm.) Rümpler -- accepted
  Echinocereus luteus Britton & Rose -- not accepted
  Echinocereus mamillatus (Engelm. ex J.M. Coult.) Britton & Rose -- not accepted
  Echinocereus mapimiensis E.F. Anderson, W.C. Hodgs. & P. Quirk -- accepted
  Echinocereus maritimus (M.E. Jones) K. Schum. -- accepted
  Echinocereus maritimus var. hancockii (E.Y. Dawson) N.P. Taylor -- not accepted
  Echinocereus matudae Bravo -- not accepted
  Echinocereus melanocentrus M. Lowry -- not accepted
  Echinocereus merkeri Hildm. -- not accepted
  Echinocereus metornii G. Frank -- accepted
  Echinocereus mojavensis (Engelm. & J.M. Bigelow) Rümpler -- not accepted
  Echinocereus mombergerianus G. Frank -- accepted
  Echinocereus morricalii Ríha -- not accepted
  Echinocereus munzii (Parish) L.D. Benson -- not accepted
  Echinocereus neomexicanus Standl. -- not accepted
  Echinocereus nicholii (L.D. Benson) B.D. Parfitt -- accepted -- Nichol's hedgehog cactus
  Echinocereus nicholii ssp. llanuraensis Rutow -- not accepted
  Echinocereus nivosus Glass & R.A. Foster -- accepted
  Echinocereus ochoterenae J.G. Ortega -- not accepted
  Echinocereus octacanthus (Muehlenpf.) Britton & Rose -- not accepted
  Echinocereus ortegae Rose -- accepted
  Echinocereus ortegae ssp. koehresianus (G. Frank) W. Rischer & G. Frank -- accepted
  Echinocereus ortegae ssp. ortegae Rose -- accepted
  Echinocereus pacificus (Engelm. ex Orcutt) Britton & Rose -- accepted
  Echinocereus palmeri Britton & Rose -- accepted
  Echinocereus palmeri ssp. mazapil H.M. Hern. & Gómez-Hin. -- accepted
  Echinocereus palmeri ssp. palmeri Britton & Rose -- accepted
  Echinocereus pamanesiorum A.B. Lau -- accepted
  Echinocereus pamanesiorum ssp. bonatzii (R.C. Römer) R.C. Römer -- accepted
  Echinocereus pamanesiorum ssp. pamanesiorum A.B. Lau -- accepted
  Echinocereus papillosus Linke ex Rümpler -- accepted -- Allicoche hedgehog cactus, Órgano-pequeño cardoncillo
  Echinocereus parkeri N.P. Taylor -- accepted
  Echinocereus parkeri ssp. arteagensis W. Blum & Mich. Lange -- accepted
  Echinocereus parkeri ssp. mazapilensis W. Blum & Mich. Lange -- accepted
  Echinocereus parkeri ssp. parkeri N.P. Taylor -- accepted
  Echinocereus pectinatus (Scheidw.) Engelm. -- accepted -- Órgano-pequeño peine, rainbow cactus
  Echinocereus pectinatus ssp. ctenoides (Engelm.) G. Frank -- accepted
  Echinocereus pectinatus ssp. pectinatus (Scheidw.) Engelm. -- accepted
  Echinocereus pectinatus ssp. wenigeri (L.D. Benson) W. Blum & Rutow -- accepted
  Echinocereus pectinatus var. dasyacanthus (Engelm.) N.P. Taylor -- not accepted -- rainbow cactus
  Echinocereus pectinatus var. minor (Engelm.) L.D. Benson -- not accepted
  Echinocereus pectinatus var. neomexicanus (J.M. Coult.) L.D. Benson -- not accepted
  Echinocereus pectinatus var. rigidissimus (Engelm.) Rümpler -- not accepted
  Echinocereus pensilis (K. Brandegee) J.A. Purpus -- accepted
  Echinocereus pentalophus (DC.) Lem. -- accepted -- ladyfinger cactus, Órgano-pequeño alicoche falso
  Echinocereus pentalophus ssp. leonensis (Mathsson) N.P. Taylor -- accepted
  Echinocereus pentalophus ssp. pentalophus (DC.) Lem. -- accepted
  Echinocereus pentalophus ssp. procumbens (Engelm.) W. Blum & Mich. Lange -- accepted
  Echinocereus perbellus Britton & Rose -- not accepted
  Echinocereus phoeniceus (Engelm.) Rümpler -- not accepted
  Echinocereus phoeniceus var. inermis K. Schum. -- not accepted
  Echinocereus phoeniceus var. phoeniceus (Engelm.) Rümpler -- not accepted
  Echinocereus polyacanthus Engelm. -- accepted -- Mojave mound cactus, Órgano-pequeño enmarañado
  Echinocereus polyacanthus ssp. acifer (Otto ex Salm-Dyck) N.P. Taylor -- not accepted
  Echinocereus polyacanthus ssp. huitcholensis (F.A.C. Weber) N.P. Taylor -- not accepted
  Echinocereus polyacanthus ssp. mombergerianus (G. Frank) Breckw. -- not accepted
  Echinocereus polyacanthus ssp. pacificus (Engelm. ex Orcutt) Breckw. -- not accepted
  Echinocereus polyacanthus var. huitcholensis (F.A.C. Weber) N.P. Taylor -- not accepted
  Echinocereus polyacanthus var. neomexicanus (Standl.) L.D. Benson -- not accepted
  Echinocereus polyacanthus var. pacificus (Engelm. ex Orcutt) N.P. Taylor -- not accepted
  Echinocereus polyacanthus var. rosei (Wooton & Standl.) D. Weniger -- not accepted
  Echinocereus poselgeri Lem. -- accepted -- dahlia hedgehog cactus, Órgano-pequeño sacasil
  Echinocereus poselgeri ssp. kroenleinii Mich. Lange -- not accepted
  Echinocereus primolanatus N.P. Taylor -- accepted
  Echinocereus pseudopectinatus (N.P. Taylor) N.P. Taylor -- accepted -- devilthorn
  Echinocereus pulchellus (Mart.) Seitz -- accepted
  Echinocereus pulchellus ssp. acanthosetus (S. Arias & U. Guzmán) W. Blum -- accepted
  Echinocereus pulchellus ssp. pulchellus (Mart.) Seitz -- accepted
  Echinocereus pulchellus ssp. sharpii (N.P. Taylor) N.P. Taylor -- accepted
  Echinocereus pulchellus ssp. weinbergii (Weing.) N.P. Taylor -- accepted
  Echinocereus purpureus Lahman -- not accepted
  Echinocereus rayonesensis N.P. Taylor -- accepted
  Echinocereus rectispinus Peebles -- not accepted
  Echinocereus rectispinus var. robustus Peebles -- not accepted
  Echinocereus reichenbachii (Terscheck ex Walp.) J.N. Haage -- accepted -- lace hedgehog cactus, Órgano-pequeño de colores
  Echinocereus reichenbachii ssp. armatus (Polselg.) N.P. Taylor -- not accepted
  Echinocereus reichenbachii ssp. baileyi (Rose) N.P. Taylor -- not accepted
  Echinocereus reichenbachii ssp. burrensis G. Frank, Metorn & E. Scherer -- not accepted
  Echinocereus reichenbachii ssp. fitchii (Britton & Rose) N.P. Taylor -- not accepted
  Echinocereus reichenbachii ssp. perbellus (Britton & Rose) N.P. Taylor -- not accepted
  Echinocereus reichenbachii ssp. reichenbachii (Terscheck ex Walp.) Britton & Rose -- not accepted
  Echinocereus reichenbachii var. albertii L.D. Benson -- not accepted -- black lace cactus
  Echinocereus reichenbachii var. albispinus (Lahman) L.D. Benson -- not accepted
  Echinocereus reichenbachii var. chisoensis (W.T. Marshall) L.D. Benson -- not accepted
  Echinocereus reichenbachii var. chisosensis (W.T. Marshall) L.D. Benson -- not accepted
  Echinocereus reichenbachii var. robustus (Peebles) L.D. Benson -- not accepted
  Echinocereus rigidissimus (Engelm.) J.N. Haage -- accepted -- rainbow hedgehog cactus
  Echinocereus rigidissimus ssp. rigidissimus (Engelm.) J.N. Haage -- accepted
  Echinocereus rigidissimus ssp. rubispinus (G. Frank) N.P. Taylor -- accepted
  Echinocereus roemeri (Muehlenpf.) Rydb. -- not accepted
  Echinocereus roetteri var. lloydii (Britton & Rose) Backeb. -- not accepted
  Echinocereus rosei Wooton & Standl. -- not accepted
  Echinocereus russanthus D. Weniger -- accepted -- brownspine hedgehog cactus, Órgano-pequeño chiso, rusty hedgehog cactus
  Echinocereus salm-dyckianus Scheer -- accepted
  Echinocereus salmianus Rümpler -- not accepted
  Echinocereus sanpedroensis Raudonat & W. Rischer -- not accepted
  Echinocereus santaritensis W. Blum & Rutow -- accepted
  Echinocereus sarissophorus Britton & Rose -- not accepted
  Echinocereus scheeri (Salm-Dyck) Scheer -- accepted
  Echinocereus scheeri ssp. gentryi (Clover) N.P. Taylor -- accepted
  Echinocereus scheeri ssp. scheeri (Salm-Dyck) Scheer -- accepted
  Echinocereus schereri G. Frank -- accepted
  Echinocereus schmollii (Weing.) N.P. Taylor -- accepted
  Echinocereus schwarzii A.B. Lau -- not accepted
  Echinocereus sciurus (K. Brandegee) Dams -- accepted
  Echinocereus sciurus ssp. floresii (Backeb.) N.P. Taylor -- accepted
  Echinocereus sciurus ssp. sciurus (K. Brandegee) Dams -- accepted
  Echinocereus scopulorum Britton & Rose -- accepted
  Echinocereus spinigemmatus A.B. Lau -- accepted
  Echinocereus steereae Clover -- not accepted
  Echinocereus stoloniferus W.T. Marshall -- accepted
  Echinocereus stoloniferus ssp. stoloniferus W.T. Marshall -- accepted
  Echinocereus stoloniferus ssp. tayopensis (W.T. Marshall) N.P. Taylor -- accepted
  Echinocereus stramineus (Engelm.) F. Seitz -- accepted -- Órgano-pequeño sanjuanero, strawberry hedgehog cactus
  Echinocereus stramineus ssp. occidentalis (N.P. Taylor) N.P. Taylor -- accepted
  Echinocereus stramineus ssp. stramineus (Engelm.) F. Seitz -- accepted
  Echinocereus subinermis Salm-Dyck ex Scheer -- accepted
  Echinocereus subinermis ssp. ochoterenae (J.G. Ortega) N.P. Taylor -- accepted
  Echinocereus subinermis ssp. subinermis Salm-Dyck ex Scheer -- accepted
  Echinocereus tamaulipensis ssp. waldeisii (Haugg) Mich. Lange -- not accepted
  Echinocereus tayopensis W.T. Marshall -- not accepted
  Echinocereus topiensis W. Rischer & Trocha -- not accepted
  Echinocereus triglochidiatus Engelm. -- accepted -- claretcup hedgehog, kingcup cactus, Mojave mound cactus, Órgano-pequeño copa de vino
  Echinocereus triglochidiatus ssp. mojavensis (Engelm. & J.M. Bigelow) W. Blum & Mich. Lange -- not accepted
  Echinocereus triglochidiatus ssp. triglochidiatus Engelm. -- not accepted
  Echinocereus triglochidiatus var. arizonicus (Rose ex Orcutt) L.D. Benson -- not accepted -- Arizona hedgehog cactus
  Echinocereus triglochidiatus var. gonacanthus (Engelm. & J.M. Bigelow) Boissev. -- not accepted
  Echinocereus triglochidiatus var. hexaedrus (Engelm.) Boissev. & C. Davidson -- not accepted
  Echinocereus triglochidiatus var. inermis (K. Schum.) Arp -- not accepted -- spineless hedgehog cactus
  Echinocereus triglochidiatus var. melanacanthus (Engelm. ex A. Gray) L.D. Benson -- not accepted
  Echinocereus triglochidiatus var. neomexicanus (Standl.) W.T. Marshall -- not accepted
  Echinocereus triglochidiatus var. octacanthus (Muehlenpf.) W.T. Marshall -- not accepted
  Echinocereus triglochidiatus var. paucispinus (Engelm.) W.T. Marshall -- not accepted
  Echinocereus triglochidiatus var. polyacanthus (Engelm.) L.D. Benson -- not accepted
  Echinocereus tulensis Bravo -- not accepted
  Echinocereus viereckii Werderm. -- accepted
  Echinocereus viereckii ssp. morricalii (Ríha) N.P. Taylor -- accepted
  Echinocereus viereckii ssp. viereckii Werderm. -- accepted
  Echinocereus viridiflorus Engelm. -- accepted -- green pitaya, nylon hedgehog cactus
  Echinocereus viridiflorus ssp. chloranthus (Engelm.) N.P. Taylor -- accepted
  Echinocereus viridiflorus ssp. davisii (Houghton) N.P. Taylor -- not accepted
  Echinocereus viridiflorus ssp. viridiflorus Engelm. -- accepted
  Echinocereus viridiflorus var. davisii (Houghton) W.T. Marshall -- not accepted -- Davis' green pitaya, Davis' hedgehog cactus
  Echinocereus viridiflorus var. standleyi (Britton & Rose) Orcutt ex D. Weniger -- not accepted
  Echinocereus waldeisii Haugg -- not accepted
  Echinocereus websterianus G.E. Linds. -- accepted
  Echinocereus weinbergii Weing. -- not accepted
  Echinocereus X lloydii Britton & Rose -- not accepted -- Lloyd's hedgehog cactus
  Echinocereus X roetteri (Engelm.) Rümpler -- accepted
  Echinofossulocactus Lawr. -- not accepted
  Echinofossulocactus albatus (A. Dietr.) Britton & Rose -- not accepted
  Echinofossulocactus arrigens (Link) Britton & Rose -- not accepted
  Echinofossulocactus caespitosus Backeb. -- not accepted
  Echinofossulocactus confusus Britton & Rose -- not accepted
  Echinofossulocactus coptonogonus (Lem.) Lawr. -- not accepted
  Echinofossulocactus crispatus (DC.) Lawr. -- not accepted
  Echinofossulocactus densispinus Tiegel ex Pechanek -- not accepted
  Echinofossulocactus dichroacanthus (Mart.) Britton & Rose -- not accepted
  Echinofossulocactus erectocentrus Backeb. -- not accepted
  Echinofossulocactus flexispinus (Salm-Dyck) Bravo -- not accepted
  Echinofossulocactus guerraianus Backeb. -- not accepted
  Echinofossulocactus heteracanthus (Muehlenpf.) Britton & Rose -- not accepted
  Echinofossulocactus kellerianus Krainz -- not accepted
  Echinofossulocactus lamellosus (A. Dietr.) Britton & Rose -- not accepted
  Echinofossulocactus lancifer (A. Dietr.) Britton & Rose -- not accepted
  Echinofossulocactus lexarzai (Bravo) Croizat -- not accepted
  Echinofossulocactus lloydii Britton & Rose -- not accepted
  Echinofossulocactus multiareolatus Bravo -- not accepted
  Echinofossulocactus obvallatus (DC.) Lawr. -- not accepted
  Echinofossulocactus pentacanthus (Lem.) Britton & Rose -- not accepted
  Echinofossulocactus phyllacanthus (A. Dietr. & Otto) Lawr. -- not accepted
  Echinofossulocactus sulphureus (A. Dietr.) Y. Itô -- not accepted
  Echinofossulocactus tricuspidatus (Scheidw.) Britton & Rose -- not accepted
  Echinofossulocactus violaciflorus (Quehl) Britton & Rose -- not accepted
  Echinofossulocactus zacatecasensis Britton & Rose -- not accepted
  Echinomastus Britton & Rose -- not accepted
  Echinomastus acunensis W.T. Marshall -- not accepted
  Echinomastus durangensis (Runge) Britton & Rose -- not accepted
  Echinomastus erectocentrus (J.M. Coult.) Britton & Rose -- not accepted
  Echinomastus erectocentrus ssp. acunensis (W.T. Marshall) U. Guzmán -- not accepted
  Echinomastus erectocentrus var. acunensis (W.T. Marshall) Bravo -- not accepted -- acuna cactus
  Echinomastus erectocentrus var. erectocentrus (J.M. Coult.) Britton & Rose -- not accepted
  Echinomastus gautii (L.D. Benson) Mosco & Zanov. -- not accepted
  Echinomastus intertextus (Engelm.) Britton & Rose -- not accepted
  Echinomastus intertextus var. dasyacanthus (Engelm.) Backeb. -- not accepted
  Echinomastus intertextus var. intertextus (Engelm.) Britton & Rose -- not accepted
  Echinomastus johnsonii (Parry ex Engelm.) E.M. Baxter -- not accepted
  Echinomastus laui G. Frank & Zecher -- not accepted
  Echinomastus mapimiensis Backeb. -- not accepted
  Echinomastus mariposensis Hester -- not accepted -- Lloyd's Mariposa cactus
  Echinomastus unguispinus (Engelm.) Britton & Rose -- not accepted
  Echinomastus unguispinus var. laui (Gerhart Frank & Zecher) Glass & R.A. Foster -- not accepted
  Echinomastus warnockii (L.D. Benson) Glass & R.A. Foster -- not accepted
  Echinopsis Zucc. -- accepted
  Echinopsis albispinosa K. Schum. -- accepted
  Echinopsis ancistrophora Speg. -- accepted
  Echinopsis ancistrophora ssp. arachnacantha (Buining & F. Ritter) Rausch -- not accepted
  Echinopsis ancistrophora ssp. cardenasiana (Rausch) Rausch -- not accepted
  Echinopsis ancistrophora ssp. pojoensis (Rausch) Rausch -- not accepted
  Echinopsis ancistrophora var. sulphurea (R. Vásquez) Rausch -- not accepted
  Echinopsis angelesiae (R. Kiesling) G.D. Rowley -- accepted
  Echinopsis antezanae (Cárdenas) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis arachnacantha (Buining & F. Ritter) H. Friedrich -- accepted
  Echinopsis arachnacantha ssp. arachnacantha (Buining & F. Ritter) H. Friedrich -- accepted
  Echinopsis arachnacantha ssp. densiseta (Rausch) Lowry -- accepted
  Echinopsis arachnacantha ssp. sulphurea (R. Vásquez) M. Lowry -- accepted
  Echinopsis arachnacantha ssp. torrecillasensis (Cárdenas) Friedrich -- accepted
  Echinopsis arachnacantha var. sulphurea (R. Vásquez) G.D. Rowley -- not accepted
  Echinopsis arboricola (Kimnach) Mottram -- accepted
  Echinopsis arebaloi Cárdenas -- not accepted
  Echinopsis atacamensis (Phil.) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis atacamensis ssp. atacamensis (Phil.) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis atacamensis ssp. pasacana (F.A.C. Weber ex Rümpler) G. Navarro -- accepted
  Echinopsis aurantiaca (Rausch) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis aurea Britton & Rose -- accepted
  Echinopsis aurea ssp. aurea Britton & Rose -- accepted
  Echinopsis aurea ssp. fallax (Oehme) M. Lowry -- accepted
  Echinopsis aurea ssp. shaferi (Britton & Rose) M. Lowry -- accepted
  Echinopsis ayopayana F. Ritter & Rausch -- accepted
  Echinopsis backebergii Werderm. -- accepted
  Echinopsis backebergii ssp. backebergii Werderm. -- accepted
  Echinopsis backebergii ssp. wrightiana (Backeb.) M. Lowry -- accepted
  Echinopsis baldiana Speg. -- not accepted
  Echinopsis boedekeriana (Boed.) Harden -- not accepted
  Echinopsis bolligeriana Mächler & Helmut Walter -- accepted
  Echinopsis boyuibensis F. Ritter -- not accepted
  Echinopsis breviflora (Backeb.) M. Lowry -- accepted
  Echinopsis brevispina (F. Ritter) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis bridgesii Salm-Dyck -- accepted
  Echinopsis bridgesii ssp. bridgesii Salm-Dyck -- accepted
  Echinopsis bridgesii ssp. vallegrandensis (Cárdenas) M. Lowry -- accepted
  Echinopsis bridgesii ssp. yungasensis (F. Ritter) P.J. Braun & Esteves -- accepted
  Echinopsis bruchii (Britton & Rose) Friedrich & Glaetzle -- not accepted
  Echinopsis caespitosa J.A. Purpus -- not accepted
  Echinopsis caineana (Cárdenas) D.R. Hunt -- accepted
  Echinopsis cajasensis F. Ritter -- not accepted
  Echinopsis calliantholilacina Cárdenas -- not accepted
  Echinopsis callichroma Cárdenas -- not accepted
  Echinopsis calochlora K. Schum. -- accepted
  Echinopsis calochlora ssp. glaetzleana P.J. Braun & Esteves -- not accepted
  Echinopsis calorubra Cárdenas -- accepted
  Echinopsis camarguensis (Cárdenas) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis candicans (Gillies ex Salm-Dyck) D.R. Hunt -- accepted
  Echinopsis carmineiflora H. Friedrich -- not accepted
  Echinopsis caulescens (F. Ritter) M. Lowry -- accepted
  Echinopsis cephalomacrostibas (Werderm. & Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis cerdana Cárdenas -- not accepted
  Echinopsis chacoana Schütz -- not accepted
  Echinopsis chalaensis (Rauh & Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis chamaecereus H. Friedrich & Glaetzle -- accepted
  Echinopsis chiloensis (Colla) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis chiloensis ssp. chiloensis (Colla) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis chiloensis ssp. litoralis (Johow) M. Lowry -- accepted
  Echinopsis chiloensis ssp. skottsbergii (Backeb. ex Skottsb.) G.J. Charles -- accepted
  Echinopsis chrysantha Werderm. -- accepted
  Echinopsis chrysochete Werderm. -- accepted
  Echinopsis cinnabarina (Hook.) Labour. -- accepted
  Echinopsis clavata (F. Ritter) D.R. Hunt -- accepted
  Echinopsis cochabambensis Backeb. -- not accepted
  Echinopsis comarapana Cárdenas -- not accepted
  Echinopsis conaconensis (Cárdenas) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis coquimbana (Molina) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis cordobensis Speg. -- not accepted
  Echinopsis coronata Cárdenas -- not accepted
  Echinopsis cotacajesi Cárdenas -- not accepted
  Echinopsis cotacajesii Cárdenas -- not accepted
  Echinopsis courantii (K. Schum.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis crassicaulis (R. Kiesling) Friedrich & Glaetzle -- not accepted
  Echinopsis cuzcoensis (Britton & Rose) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis densispina Werderm. -- accepted
  Echinopsis deserticola (Werderm.) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis elongata (Backeb.) Friedrich & Glaetzle -- not accepted
  Echinopsis escayachensis (Cárdenas) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis fabrisii (R. Kiesling) G.D. Rowley -- not accepted
  Echinopsis famatimensis (Speg.) Werderm. -- accepted
  Echinopsis ferox (Britton & Rose) Backeb. -- accepted
  Echinopsis ferox ssp. potosina (Werderm.) M. Lowry -- not accepted
  Echinopsis ferox var. potosina (Werderm.) Rausch -- not accepted
  Echinopsis fiebrigii Gürke -- not accepted
  Echinopsis formosa (Pfeiff.) Jacobi ex Salm-Dyck -- accepted
  Echinopsis formosa ssp. bruchii (Britton & Rose) M. Lowry -- accepted
  Echinopsis formosa ssp. formosa (Pfeiff.) Jacobi ex Salm-Dyck -- accepted
  Echinopsis formosa ssp. kieslingii (Rausch) M. Lowry -- accepted
  Echinopsis formosa ssp. korethroides (Werderm.) M. Lowry -- accepted
  Echinopsis formosa ssp. randallii (Cárdenas) M. Lowry -- accepted
  Echinopsis formosa ssp. rosarioana (Rausch) M. Lowry -- accepted
  Echinopsis glauca (F. Ritter) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis haematantha (Speg.) D.R. Hunt -- accepted
  Echinopsis hahniana (Backeb.) R.S. Wallace -- accepted
  Echinopsis hamatacantha Backeb. -- not accepted
  Echinopsis hammerschmidii Cárdenas -- not accepted
  Echinopsis hardeniana Boed. -- not accepted
  Echinopsis herbasii Cárdenas -- not accepted
  Echinopsis hertrichiana (Backeb.) D.R. Hunt -- accepted
  Echinopsis hualfinensis (Rausch) Friedrich & Glaetzle -- not accepted
  Echinopsis huascha (F.A.C. Weber) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis huascha ssp. huascha (F.A.C. Weber) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis huascha ssp. robusta (Rausch) M. Lowry -- accepted
  Echinopsis huotii (J.F. Cels) Labour. -- not accepted
  Echinopsis huotii ssp. vallegrandensis (Cárdenas) G. Navarro -- not accepted
  Echinopsis hystrichoides F. Ritter -- not accepted
  Echinopsis ibicuatensis Cárdenas -- not accepted
  Echinopsis intricatissima Speg. -- not accepted
  Echinopsis jajoana (Backeb.) Blos. -- accepted
  Echinopsis klingleriana Cárdenas -- not accepted
  Echinopsis korethroides Werderm. -- not accepted
  Echinopsis kratochviliana Backeb. -- not accepted
  Echinopsis kuehnrichii (Fric) Friedrich & Glaetzle -- not accepted
  Echinopsis lageniformis (C.F. Först.) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis lateritia Gürke -- accepted
  Echinopsis lecoriensis Cárdenas -- not accepted
  Echinopsis leucantha (Gillies ex Salm-Dyck) Walp. -- accepted
  Echinopsis longispina (Britton & Rose) Werderm. -- not accepted
  Echinopsis mamillosa Gürke -- accepted
  Echinopsis mamillosa ssp. silvatica (F. Ritter) P.J. Braun & Esteves -- not accepted
  Echinopsis marsoneri Werderm. -- accepted
  Echinopsis mataranensis Cárdenas -- not accepted
  Echinopsis maximiliana Heyder ex A. Dietr. -- accepted
  Echinopsis maximiliana ssp. caespitosa (J.A. Purpus) M. Lowry -- accepted
  Echinopsis maximiliana ssp. maximiliana Heyder ex A. Dietr. -- accepted
  Echinopsis maximiliana ssp. westii (Hutchison) M. Lowry -- accepted
  Echinopsis melanopotamica Speg. -- not accepted
  Echinopsis meyeri Heese -- not accepted
  Echinopsis minuana Speg. -- not accepted
  Echinopsis mirabilis Speg. -- accepted
  Echinopsis molesta Speg. -- not accepted
  Echinopsis multiplex (Pfeiff.) Zucc. ex Pfeiff. & Otto -- not accepted
  Echinopsis nigra Backeb. -- not accepted
  Echinopsis obrepanda (Salm-Dyck) K. Schum. -- accepted
  Echinopsis obrepanda ssp. calorubra (Cárdenas) G. Navarro -- not accepted
  Echinopsis obrepanda ssp. tapecuana (F. Ritter) G. Navarro -- not accepted
  Echinopsis obrepanda var. calorubra (Cárdenas) Rausch -- not accepted
  Echinopsis oligotricha (Cárdenas) M. Lowry -- accepted
  Echinopsis oxygona (Link) Zucc. ex Pfeiff. -- accepted
  Echinopsis pachanoi (Britton & Rose) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis pampana (Britton & Rose) D.R. Hunt -- accepted
  Echinopsis pampariuzii Cárdenas -- accepted
  Echinopsis paraguayensis Mundt ex F. Ritter -- not accepted
  Echinopsis pasacana (F.A.C. Weber ex Rümpler) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis pecheretiana (Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis pentlandii (Hook.) Salm-Dyck ex A. Dietr. -- accepted
  Echinopsis pentlandii ssp. hardeniana (Boed.) G. Navarro -- not accepted
  Echinopsis pentlandii ssp. larae (Cárdenas) G. Navarro -- not accepted
  Echinopsis pereziensis Cárdenas -- not accepted
  Echinopsis peruviana (Britton & Rose) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis peruviana ssp. puquiensis (Rauh & Backeb.) Ostolaza -- not accepted
  Echinopsis poco (Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis pojoensis Cárdenas -- not accepted
  Echinopsis polyancistra Backeb. -- not accepted
  Echinopsis potosina Werderm. -- not accepted
  Echinopsis pseudocandicans (R. Kiesling) Friedrich & Glaetzle -- not accepted
  Echinopsis pseudomammillosa Cárdenas -- not accepted
  Echinopsis pugionacantha Rose & Boed. -- accepted
  Echinopsis pugionacantha ssp. haemantha (Rausch) M. Lowry -- accepted
  Echinopsis pugionacantha ssp. pugionacantha Rose & Boed. -- accepted
  Echinopsis pugionacantha ssp. rossii (Boed.) G. Navarro -- accepted
  Echinopsis puquiensis (Rauh & Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis purpureopilosa (Weing.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis quadratiumbonata (F. Ritter) D.R. Hunt -- accepted
  Echinopsis quinesensis (Rausch) Friedrich & Glaetzle -- not accepted
  Echinopsis randallii (Cárdenas) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis rhodotricha K. Schum. -- accepted
  Echinopsis rhodotricha ssp. chacoana (Schütz) P.J. Braun & Esteves -- accepted
  Echinopsis rhodotricha ssp. rhodotricha K. Schum. -- accepted
  Echinopsis ritteri Boed. -- not accepted
  Echinopsis riviere-de-caraltii Cárdenas -- not accepted
  Echinopsis rivierei (Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis rojasii Cárdenas -- accepted
  Echinopsis roseo-lilacina Cárdenas -- not accepted
  Echinopsis rossii Boed. -- not accepted
  Echinopsis rowleyi H. Friedrich -- accepted
  Echinopsis rubinghiana (Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis saltensis Speg. -- accepted
  Echinopsis saltensis ssp. saltensis Speg. -- accepted
  Echinopsis saltensis ssp. schreiteri (A. Cast.) M. Lowry -- accepted
  Echinopsis sanguiniflora (Backeb.) D.R. Hunt -- not accepted
  Echinopsis santaensis (Rauh & Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis schickendantzii F.A.C. Weber -- accepted
  Echinopsis schieliana (Backeb.) D.R. Hunt -- accepted
  Echinopsis schoenii (Rauh & Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis schreiteri (A. Cast.) Werderm. -- not accepted
  Echinopsis scoparia Werderm. -- not accepted
  Echinopsis scopulicola (F. Ritter) Mottram -- not accepted
  Echinopsis shaferi Britton & Rose -- not accepted
  Echinopsis silvatica F. Ritter -- not accepted
  Echinopsis silvestrii Speg. -- not accepted
  Echinopsis skottsbergii (Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis smrziana Backeb. -- not accepted
  Echinopsis spegazziniana Britton & Rose -- not accepted
  Echinopsis spiniflora (K. Schum.) A. Berger -- accepted
  Echinopsis stilowiana (Backeb.) Lam. -- accepted
  Echinopsis stollenwerkiana Boed. -- not accepted
  Echinopsis strigosa (Salm-Dyck) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis subdenudatus Cárdenas -- not accepted
  Echinopsis sucrensis Cárdenas -- not accepted
  Echinopsis tacaquirensis (Vaupel) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis tacaquirensis ssp. taquimbalensis (Cárdenas) G. Navarro -- not accepted
  Echinopsis tapecuana F. Ritter -- not accepted
  Echinopsis taquimbalensis (Cárdenas) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis taratensis (Cárdenas) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis tarijensis (Vaupel) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis tarijensis ssp. bertramiana (Backeb.) M. Lowry -- accepted
  Echinopsis tarijensis ssp. herzogianus (Cárdenas) G. Navarro -- not accepted
  Echinopsis tarijensis ssp. tarijensis (Vaupel) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis tarijensis ssp. totorensis (Cárdenas) G. Navarro -- not accepted
  Echinopsis tarmaensis (Rauh & Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis tegeleriana (Backeb.) D.R. Hunt -- accepted
  Echinopsis terscheckii (J. Parm. ex Pfeiff.) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis thelegona (F.A.C. Weber) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis thelegonoides (Speg.) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis thionantha (Speg.) Werderm. -- accepted
  Echinopsis thionantha ssp. ferrarii (Rausch) M. Lowry -- accepted
  Echinopsis thionantha ssp. glauca (F. Ritter) M. Lowry -- accepted
  Echinopsis thionantha ssp. thionantha (Speg.) Werderm. -- accepted
  Echinopsis tiegeliana (Wessner) D.R. Hunt -- accepted
  Echinopsis toralapana Cárdenas -- not accepted
  Echinopsis torrecillasensis Cárdenas -- not accepted
  Echinopsis tulhuayacensis (Ochoa) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis tunariensis (Cárdenas) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis uebelmanniana (Lembcke & Backeb.) A.E. Hoffm. -- not accepted
  Echinopsis uyupampensis (Backeb.) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis vallegrandensis Cárdenas -- not accepted
  Echinopsis vasquezii (Rausch) G.D. Rowley -- accepted
  Echinopsis vatteri (R. Kiesling) G.D. Rowley -- not accepted
  Echinopsis volliana (Backeb.) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis walteri (R. Kiesling) Friedrich & Glaetzle -- accepted
  Echinopsis werdermanniana (Backeb.) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis yungasensis F. Ritter -- not accepted
  Echinopsis yuquina D.R. Hunt -- accepted
  Emorycactus Doweld -- not accepted
  Emorycactus parryi (Engelm.) Doweld -- not accepted
  Emorycactus polycephalus (Engelm. & J.M. Bigelow) Doweld -- not accepted
  Emorycactus xeranthemoides (J.M. Coult.) Doweld -- not accepted
  Encephalocarpus A. Berger -- not accepted
  Encephalocarpus strobiliformis (Werderm.) A. Berger -- not accepted
  Eomatucana F. Ritter -- not accepted
  Eomatucana madisoniorum (Hutchison) F. Ritter -- not accepted
  Eomatucana oreodoxa F. Ritter -- not accepted
  Epiphyllanthus A. Berger -- not accepted
  Epiphyllanthus candidus (Loefgr.) Britton & Rose -- not accepted
  Epiphyllanthus microsphaericus (K. Schum.) Britton & Rose -- not accepted
  Epiphyllanthus obovatus (Engelm. ex K. Schum.) Britton & Rose -- not accepted
  Epiphyllanthus obtusangulus (K. Schum.) A. Berger -- not accepted
  Epiphyllopsis A. Berger -- not accepted
  Epiphyllopsis gaertneri (Regel) A. Berger -- not accepted
  Epiphyllum Haw. -- accepted -- climbing cactus
  Epiphyllum ackermannii Haw. -- not accepted
  Epiphyllum anguliger (Lem.) G. Don ex Loudon -- accepted
  Epiphyllum baueri Dorsch -- accepted
  Epiphyllum cartagense (F.A.C. Weber) Britton & Rose -- accepted
  Epiphyllum caudatum Britton & Rose -- not accepted
  Epiphyllum chrysocardium Alexander -- not accepted
  Epiphyllum columbiense (F.A.C. Weber) Dodson & Gentry -- not accepted
  Epiphyllum costaricense (F.A.C. Weber) Britton & Rose -- not accepted
  Epiphyllum crenatum (Lindl.) G. Don -- accepted
  Epiphyllum crenatum ssp. crenatum (Lindl.) G. Don -- accepted
  Epiphyllum crenatum ssp. kimnachii (Bravo) U. Guzmán -- accepted
  Epiphyllum darrahii (K. Schum.) Britton & Rose -- not accepted
  Epiphyllum eichlamii (Weing.) L.O. Williams -- not accepted
  Epiphyllum gigas Woodson & Cutak -- not accepted
  Epiphyllum grandilobum (F.A.C. Weber) Britton & Rose -- accepted
  Epiphyllum guatemalense Britton & Rose -- not accepted
  Epiphyllum hookeri Haw. -- accepted -- nightblooming cactus, Nopalillo de Hooker
  Epiphyllum hookeri ssp. columbiense (F.A.C. Weber) Ralf Bauer -- accepted
  Epiphyllum hookeri ssp. guatemalense (Britton & Rose) Ralf Bauer -- accepted
  Epiphyllum hookeri ssp. hookeri Haw. -- accepted
  Epiphyllum hookeri ssp. pittieri (F.A.C. Weber) Ralf Bauer -- accepted
  Epiphyllum laui Kimnach -- accepted
  Epiphyllum lepidocarpum (F.A.C. Weber) Britton & Rose -- accepted
  Epiphyllum macrocarpum (F.A.C. Weber) Backeb. -- not accepted
  Epiphyllum nelsonii Britton & Rose -- not accepted
  Epiphyllum oxypetalum (DC.) Haw. -- accepted -- Dutchman's pipe cactus, Nopalillo criollo
  Epiphyllum phyllanthus (L.) Haw. -- accepted -- climbing cactus
  Epiphyllum phyllanthus ssp. phyllanthus (L.) Haw. -- accepted
  Epiphyllum phyllanthus ssp. rubrocoronatum (Kimnach) Ralf Bauer -- accepted
  Epiphyllum phyllanthus var. rubrocoronatum Kimnach -- not accepted
  Epiphyllum pumilum Britton & Rose -- accepted
  Epiphyllum quezaltecum (Standl. & Steyerm.) L.O. Williams -- not accepted
  Epiphyllum stenopetalum (C.F. Först.) Britton & Rose -- not accepted
  Epiphyllum steyermarkii Croizat -- not accepted
  Epiphyllum strictum (Lem.) Britton & Rose -- not accepted
  Epiphyllum thomasianum (K. Schum.) Britton & Rose -- accepted
  Epiphyllum thomasianum ssp. costaricense (F.A.C. Weber) Ralf Bauer -- accepted
  Epiphyllum thomasianum ssp. thomasianum (K. Schum.) Britton & Rose -- accepted
  Epiphyllum trimetrale Croizat -- not accepted
  Epiphyllum truncatum Haw. -- not accepted
  Epithelantha A. Weber ex Britton & Rose -- accepted -- pingpong ball cactus
  Epithelantha bokei L.D. Benson -- accepted -- Biznaga-blanca de Boquillas, Boke's button cactus
  Epithelantha densispina Bravo -- not accepted
  Epithelantha greggii (Engelm.) Orcutt -- not accepted
  Epithelantha micromeris (Engelm.) A. Weber ex Britton & Rose -- accepted -- Biznaga-blanca chilona, pingpong ball cactus
  Epithelantha micromeris ssp. greggii (Engelm.) N.P. Taylor -- not accepted
  Epithelantha micromeris ssp. pachyrhiza (W.T. Marshall) N.P. Taylor -- not accepted
  Epithelantha micromeris ssp. polycephala (Backeb.) Glass -- not accepted
  Epithelantha micromeris var. pachyrhiza W.T. Marshall -- not accepted
  Epithelantha micromeris var. polycephala (Backeb.) Glass & R.A. Foster -- not accepted
  Epithelantha pachyrhiza (W.T. Marshall) Backeb. -- not accepted
  Epithelantha petri Halda & Horácek -- not accepted
  Epithelantha petrii Halda & Horácek -- not accepted
  Epithelantha polycephala Backeb. -- not accepted
  Epithelantha rufispina Bravo -- not accepted
  Erdisia Britton & Rose -- not accepted
  Erdisia apiciflora (Vaupel) Werderm. -- not accepted
  Erdisia aureispina Backeb. & H. Jacobsen -- not accepted
  Erdisia erecta Backeb. -- not accepted
  Erdisia fortalezensis F. Ritter -- not accepted
  Erdisia maxima Backeb. -- not accepted
  Erdisia meyenii Britton & Rose -- not accepted
  Erdisia philippii (Regel & Schmidt) Britton & Rose -- not accepted
  Erdisia quadrangularis Rauh & Backeb. -- not accepted
  Erdisia sextoniana Backeb. -- not accepted
  Erdisia spiniflora (Phil.) Britton & Rose -- not accepted
  Erdisia squarrosa (Vaupel) Britton & Rose -- not accepted
  Erdisia tenuicula Backeb. -- not accepted
  Eriocactus Backeb. -- not accepted
  Eriocactus ampliocostatus F. Ritter -- not accepted
  Eriocactus claviceps F. Ritter -- not accepted
  Eriocactus leninghausii Backeb. ex Schaffnit -- not accepted
  Eriocactus magnificus F. Ritter -- not accepted
  Eriocactus nigrispinus (K. Schum.) F. Ritter -- not accepted
  Eriocactus schumannianus (Nicolai) Backeb. -- not accepted
  Eriocactus warasii F. Ritter -- not accepted
  Eriocereus (A. Berger) Riccob. -- not accepted
  Eriocereus martinii (Labour.) Riccob. -- not accepted -- moon cactus
  Eriocereus spinosissimus Buining & Brederoo -- not accepted
  Eriosyce Phil. -- accepted
  Eriosyce algarrobensis F. Ritter -- not accepted
  Eriosyce andreaeana Katt. -- not accepted
  Eriosyce aspillagae (Söhrens) Katt. -- accepted
  Eriosyce aspillagae ssp. maechlerorum Helmut Walter -- not accepted
  Eriosyce aurata (Pfeiff.) Backeb. -- accepted
  Eriosyce bulbocalyx (Werderm.) Katt. -- accepted
  Eriosyce calderana (F. Ritter) Ferryman -- accepted
  Eriosyce caligophila R. Pinto -- not accepted
  Eriosyce ceratistes (Otto) Britton & Rose -- not accepted
  Eriosyce chilensis (Hildm. ex K. Schum.) Katt. -- accepted
  Eriosyce confinis (F. Ritter) Katt. -- accepted
  Eriosyce crispa (F. Ritter) Katt. -- accepted
  Eriosyce crispa ssp. crispa (F. Ritter) Katt. -- accepted
  Eriosyce crispa ssp. totoralensis (F. Ritter) Katt. -- accepted
  Eriosyce curvispina (Bertero ex Colla) Katt. -- accepted
  Eriosyce curvispina ssp. armata (F. Ritter) Katt. -- accepted
  Eriosyce curvispina ssp. curvispina (Bertero ex Colla) Katt. -- accepted
  Eriosyce curvispina ssp. marksiana (F. Ritter) Ferryman -- accepted
  Eriosyce eriosyzoides (F. Ritter) Ferryman -- accepted
  Eriosyce eriosyzoides ssp. atroviridis (F. Ritter) Ferryman -- accepted
  Eriosyce eriosyzoides ssp. eriosyzoides (F. Ritter) Ferryman -- accepted
  Eriosyce esmeraldana (F. Ritter) Katt. -- accepted
  Eriosyce garaventae (F. Ritter) Katt. -- accepted
  Eriosyce heinrichiana (Backeb.) Katt. -- accepted
  Eriosyce ihotzkyanae F. Ritter -- not accepted
  Eriosyce iquiquensis (F. Ritter) Ferryman -- accepted
  Eriosyce islayensis (C.F. Först.) Katt. -- accepted
  Eriosyce islayensis ssp. grandis (Rauh & Backeb.) G.J. Charles -- accepted
  Eriosyce islayensis ssp. islayensis (C.F. Först.) Katt. -- accepted
  Eriosyce islayensis ssp. omasensis (Ostolaza & Mischler) G.J. Charles -- accepted
  Eriosyce lapampaensis F. Ritter -- not accepted
  Eriosyce laui Lüthy -- accepted
  Eriosyce megacarpa F. Ritter -- not accepted
  Eriosyce megliolii (Rausch) Ferryman -- accepted
  Eriosyce napina (Phil.) Katt. -- accepted
  Eriosyce napina ssp. aerocarpa (F. Ritter) Ferryman -- accepted
  Eriosyce napina ssp. duripulpa (F. Ritter) Katt. -- not accepted
  Eriosyce napina ssp. glabrescens (F. Ritter) Ferryman -- accepted
  Eriosyce napina ssp. lembckei (Backeb.) Katt. -- accepted
  Eriosyce napina ssp. napina (Phil.) Katt. -- accepted
  Eriosyce napina ssp. tenebrica (F. Ritter) Ferryman -- accepted
  Eriosyce occulta Katt. -- accepted
  Eriosyce odieri (Lem. ex Salm-Dyck) Katt. -- accepted
  Eriosyce odieri ssp. krausii (F. Ritter) Ferryman -- accepted
  Eriosyce odieri ssp. odieri (Lem. ex Salm-Dyck) Katt. -- accepted
  Eriosyce paucicostata (F. Ritter) Ferryman -- accepted
  Eriosyce paucicostata ssp. echinus (F. Ritter) Ferryman -- accepted
  Eriosyce paucicostata ssp. floccosa (F. Ritter) Ferryman -- accepted
  Eriosyce paucicostata ssp. paucicostata (F. Ritter) Ferryman -- accepted
  Eriosyce recondita (F. Ritter) Katt. -- accepted
  Eriosyce rodentiophila F. Ritter -- accepted
  Eriosyce sandillon (Gay) Phil. -- not accepted
  Eriosyce senilis (Backeb.) Katt. -- accepted
  Eriosyce senilis ssp. coimasensis (F. Ritter) Katt. -- accepted
  Eriosyce senilis ssp. senilis (Backeb.) Katt. -- accepted
  Eriosyce simulans (F. Ritter) Katt. -- accepted
  Eriosyce sociabilis (F. Ritter) Katt. -- accepted
  Eriosyce spinibarbis F. Ritter -- not accepted
  Eriosyce strausiana (K. Schum.) Katt. -- accepted
  Eriosyce strausiana ssp. pachacoensis (Rausch) Ferryman -- accepted
  Eriosyce strausiana ssp. strausiana (K. Schum.) Katt. -- accepted
  Eriosyce subgibbosa (Haw.) Katt. -- accepted
  Eriosyce subgibbosa ssp. clavata (Söhrens) Katt. -- accepted
  Eriosyce subgibbosa ssp. subgibbosa (Haw.) Katt. -- accepted
  Eriosyce subgibbosa ssp. vallenarensis (F. Ritter) Katt. -- accepted
  Eriosyce subgibbosa ssp. wagenknechtii (F. Ritter) Katt. -- accepted
  Eriosyce taltalensis (Hutchison) Katt. -- accepted
  Eriosyce taltalensis ssp. pygmaea (F. Ritter) Ferryman -- accepted
  Eriosyce taltalensis ssp. taltalensis (Hutchison) Katt. -- accepted
  Eriosyce umadeave (Werderm.) Katt. -- accepted
  Eriosyce vertongenii (J.G. Lamb.) D.R. Hunt -- not accepted
  Eriosyce villicumensis (Rausch) Katt. -- accepted
  Eriosyce villosa (Monv.) Katt. -- accepted
  Erythrorhipsalis A. Berger -- not accepted
  Erythrorhipsalis pilocarpa (Loefgr.) A. Berger -- not accepted
  Escobaria Britton & Rose -- accepted -- foxtail cactus, pincushion cactus
  Escobaria aguirreana (Glass & R.A. Foster) N.P. Taylor -- not accepted
  Escobaria albicolumnaria Hester -- not accepted -- column foxtail cactus
  Escobaria alversonii (J.M. Coult.) N.P. Taylor -- accepted -- cushion foxtail cactus
  Escobaria asperispina (Boed.) D.R. Hunt -- not accepted
  Escobaria bella Britton & Rose -- not accepted
  Escobaria bisbeeana (Orcutt) Borg -- not accepted
  Escobaria chaffeyi Britton & Rose -- not accepted -- Biznaga-Escobar de Cedros
  Escobaria chihuahuensis Britton & Rose -- accepted
  Escobaria chihuahuensis ssp. chihuahuensis Britton & Rose -- accepted
  Escobaria chihuahuensis ssp. henricksonii (Glass & R.A. Foster) N.P. Taylor -- accepted
  Escobaria chlorantha (Engelm.) Buxb. -- accepted
  Escobaria cubensis (Britton & Rose) D.R. Hunt -- accepted
  Escobaria dasyacantha (Engelm.) Britton & Rose -- accepted -- Big Bend foxtail cactus, Biznaga-Escobar de espinas gruesas
  Escobaria dasyacantha ssp. chaffeyi (Britton & Rose) N.P. Taylor -- accepted
  Escobaria dasyacantha ssp. dasyacantha (Engelm.) Britton & Rose -- accepted
  Escobaria dasyacantha var. varicolor (Tiegel) D.R. Hunt -- not accepted
  Escobaria deserti (Engelm.) Buxb. -- not accepted
  Escobaria duncanii (Hester) Backeb. -- accepted
  Escobaria emskoetteriana (Quehl) Borg -- accepted -- Biznaga-Escobar de Emskoetter, junior Tom Thumb cactus
  Escobaria guadalupensis S. Brack & K.D. Heil -- not accepted -- Guadalupe Mountain foxtail cactus, Guadalupe pincushion cactus
  Escobaria henricksonii Glass & R.A. Foster -- not accepted
  Escobaria hesteri (Y. Wright) Buxb. -- accepted -- Hester's foxtail cactus
  Escobaria laredoi (Glass & R.A. Foster) N.P. Taylor -- accepted
  Escobaria leei Rose ex Boed. -- not accepted
  Escobaria lloydii Britton & Rose -- accepted
  Escobaria minima (Baird) D.R. Hunt -- accepted -- birdfoot cactus, small coryphantha
  Escobaria missouriensis (Sweet) D.R. Hunt -- accepted -- Missouri foxtail cactus
  Escobaria missouriensis ssp. asperispina (Boed.) N.P. Taylor -- accepted
  Escobaria missouriensis ssp. missouriensis (Sweet) D.R. Hunt -- accepted
  Escobaria missouriensis ssp. navajoensis Hochstätter -- not accepted
  Escobaria missouriensis var. caespitosa (Engelm.) D.R. Hunt -- not accepted
  Escobaria muehlbaueriana (Boed.) F.M. Knuth -- not accepted
  Escobaria nellieae (Croizat) Backeb. -- not accepted
  Escobaria neomexicana (Engelm.) Buxb. -- not accepted
  Escobaria orcuttii Boed. -- not accepted -- Orcutt's foxtail cactus
  Escobaria orcuttii var. koenigii Castetter, P. Pierce & K.H. Schwer. -- not accepted
  Escobaria orcuttii var. macraxima Castetter, P. Pierce & K.H. Schwer. -- not accepted
  Escobaria robbinsiorum (W.H. Earle) D.R. Hunt -- not accepted -- Cochise foxtail cactus, Cochise pincushion cactus
  Escobaria robbinsorum (W.H. Earle) D.R. Hunt -- accepted -- Cochise foxtail cactus, Cochise pincushion cactus
  Escobaria roseana (Boed.) Buxb. -- not accepted
  Escobaria roseana ssp. galeanensis Haugg -- not accepted
  Escobaria runyonii Britton & Rose -- not accepted
  Escobaria sandbergii Castetter, P. Pierce & K.H. Schwer. -- not accepted -- San Andres Mountain foxtail cactus
  Escobaria sneedii Britton & Rose -- accepted -- carpet foxtail cactus
  Escobaria sneedii ssp. leei (Rose ex Boed.) D.R. Hunt -- not accepted
  Escobaria sneedii ssp. orcuttii (Boed.) Lüthy -- accepted
  Escobaria sneedii ssp. sneedii Britton & Rose -- accepted
  Escobaria sneedii var. leei (Rose ex Boed.) D.R. Hunt -- not accepted -- carpet foxtail cactus
  Escobaria strobiliformis auct. non (Poselg.) Boed. -- not accepted
  Escobaria strobiliformis (Polseg.) Boed. -- not accepted
  Escobaria tuberculosa (Engelm.) Britton & Rose -- accepted -- Biznaga-Escobar rómbica, white column foxtail cactus
  Escobaria tuberculosa var. varicolor (Tiegel) S. Brack & K.D. Heil -- not accepted
  Escobaria villardii Castetter, P. Pierce & K.H. Schwer. -- not accepted -- Sacramento Mountain foxtail cactus, Villard's pincushion cactus
  Escobaria vivipara (Nutt.) Buxb. -- accepted -- spinystar
  Escobaria vivipara var. alversonii (J.M. Coult.) D.R. Hunt -- not accepted
  Escobaria zilziana (Boed.) Backeb. -- accepted
  Escobrittonia Doweld -- not accepted
  Escobrittonia gracilis (L. Bremer & A.B. Lau) Doweld -- not accepted
  Escontria Rose -- accepted
  Escontria chiotilla (F.A.C. Weber) Rose -- accepted
  Escontria lepidantha (Eichlam) Buxb. -- not accepted
  Espostoa Britton & Rose -- accepted
  Espostoa blossfeldiorum (Werderm.) Buxb. -- accepted
  Espostoa calva F. Ritter -- accepted
  Espostoa frutescens Madsen -- accepted
  Espostoa guentheri (Kupper) Buxb. -- accepted
  Espostoa huanucoensis H. Johnson ex F. Ritter -- not accepted
  Espostoa hylaea F. Ritter -- accepted
  Espostoa lanata (Kunth) Britton & Rose -- accepted
  Espostoa lanata ssp. huanucoensis (H. Johnson ex F. Ritter) G.J. Charles -- accepted
  Espostoa lanata ssp. lanata (Kunth) Britton & Rose -- accepted
  Espostoa lanata ssp. lanianuligera (F. Ritter) G.J. Charles -- accepted
  Espostoa lanata ssp. ruficeps (F. Ritter) G.J. Charles -- accepted
  Espostoa lanianuligera F. Ritter -- not accepted
  Espostoa laticornua Rauh & Backeb. -- not accepted
  Espostoa melanostele (Vaupel) Borg -- accepted
  Espostoa melanostele ssp. melanostele (Vaupel) Borg -- accepted
  Espostoa melanostele ssp. nana (F. Ritter) G.J. Charles -- accepted
  Espostoa mirabilis F. Ritter -- accepted
  Espostoa nana F. Ritter -- not accepted
  Espostoa procera Rauh & Backeb. -- not accepted
  Espostoa ritteri Buining -- not accepted
  Espostoa ruficeps F. Ritter -- not accepted
  Espostoa senilis (F. Ritter) N.P. Taylor -- accepted
  Espostoa superba F. Ritter -- accepted
  Espostoa utcubambensis G.J. Charles -- accepted
  Espostoopsis Buxb. -- accepted
  Espostoopsis dybowskii (Rol.-Goss.) Buxb. -- accepted
  Eulychnia Phil. -- accepted
  Eulychnia acida Phil. -- accepted
  Eulychnia aricensis F. Ritter -- not accepted
  Eulychnia barquitensis F. Ritter -- not accepted
  Eulychnia breviflora Phil. -- accepted
  Eulychnia castanea (K. Schum.) Phil. -- accepted
  Eulychnia iquiquensis (K. Schum.) Britton & Rose -- accepted
  Eulychnia iquiquensis ssp. iquiquensis (K. Schum.) Britton & Rose -- accepted
  Eulychnia iquiquensis ssp. ritteri (Cullmann) D.R. Hunt -- accepted
  Eulychnia morromorenoensis F. Ritter -- not accepted
  Eulychnia procumbens Backeb. -- not accepted
  Eulychnia ritteri Cullmann -- not accepted
  Eulychnia saint-pieana F. Ritter -- not accepted
  Facheiroa Britton & Rose -- accepted
  Facheiroa braunii Esteves -- not accepted
  Facheiroa cephaliomelana Buining & Brederoo -- accepted
  Facheiroa cephaliomelana ssp. cephaliomelana Buining & Brederoo -- accepted
  Facheiroa cephaliomelana ssp. estevesii (P.J. Braun) N.P. Taylor & Zappi -- accepted
  Facheiroa chaetacantha (F. Ritter) P.J. Braun & Esteves -- not accepted
  Facheiroa estevesii P.J. Braun -- not accepted
  Facheiroa pilosa F. Ritter -- not accepted
  Facheiroa pubiflora Britton & Rose -- not accepted
  Facheiroa squamosa (Gürke) P.J. Braun & Esteves -- accepted
  Facheiroa squamosa ssp. polygona (F. Ritter) P.J. Braun & Esteves -- not accepted
  Facheiroa tenebrosa P.J. Braun & Esteves -- not accepted
  Facheiroa ulei (Gürke) Werderm. -- accepted
  Ferocactus Britton & Rose -- accepted -- barrel cactus
  Ferocactus acanthodes (Lem.) Britton & Rose -- not accepted
  Ferocactus acanthodes var. eastwoodiae L.D. Benson -- not accepted
  Ferocactus acanthodes var. lecontei (Engelm.) G.E. Linds. -- not accepted
  Ferocactus alamosanus (Britton & Rose) Britton & Rose -- accepted
  Ferocactus alamosanus ssp. alamosanus (Britton & Rose) Britton & Rose -- accepted
  Ferocactus alamosanus ssp. reppenhagenii (G. Unger) N.P. Taylor -- accepted
  Ferocactus chrysacanthus (Orcutt) Britton & Rose -- accepted
  Ferocactus chrysacanthus ssp. chrysacanthus (Orcutt) Britton & Rose -- accepted
  Ferocactus chrysacanthus ssp. grandiflorus (G.E. Linds.) N.P. Taylor -- accepted
  Ferocactus covillei Britton & Rose -- not accepted
  Ferocactus crassihamatus (F.A.C. Weber) Britton & Rose -- not accepted
  Ferocactus cylindraceus (Engelm.) Orcutt -- accepted -- Biznaga-barril cilíndrica, California barrel cactus
  Ferocactus cylindraceus ssp. cylindraceus (Engelm.) Orcutt -- accepted
  Ferocactus cylindraceus ssp. eastwoodiae (L.D. Benson) N.P. Taylor -- accepted
  Ferocactus cylindraceus ssp. lecontei (Engelm.) N.P. Taylor -- accepted
  Ferocactus cylindraceus var. tortulospinus (H.E. Gates) Bravo -- not accepted
  Ferocactus diguetii (F.A.C. Weber) Britton & Rose -- accepted
  Ferocactus eastwoodiae (L.D. Benson) L.D. Benson -- not accepted
  Ferocactus echidne (DC.) Britton & Rose -- accepted
  Ferocactus emoryi (Engelm.) Orcutt -- accepted -- Biznaga-barril de Emory, Emory's barrel cactus
  Ferocactus emoryi ssp. covillei (Britton & Rose) D.R. Hunt & Dimmitt -- accepted
  Ferocactus emoryi ssp. emoryi (Engelm.) Orcutt -- accepted
  Ferocactus emoryi ssp. rectispinus (Engelm.) N.P. Taylor -- accepted
  Ferocactus flavovirens (Scheidw.) Britton & Rose -- accepted
  Ferocactus fordii (Orcutt) Britton & Rose -- accepted
  Ferocactus fordii ssp. borealis N.P. Taylor -- accepted
  Ferocactus fordii ssp. fordii (Orcutt) Britton & Rose -- accepted
  Ferocactus glaucescens (DC.) Britton & Rose -- accepted
  Ferocactus glaucus (K. Schum.) N.P. Taylor -- not accepted
  Ferocactus gracilis H.E. Gates -- accepted
  Ferocactus gracilis ssp. gatesii (G.E. Linds.) N.P. Taylor -- accepted
  Ferocactus gracilis var. gracilis H.E. Gates -- not accepted
  Ferocactus haematacanthus (Muehlenpf.) Britton & Rose -- accepted
  Ferocactus hamatacanthus (Muehlenpf.) Britton & Rose -- accepted -- Biznaga-barril costillona, Turk's head
  Ferocactus hamatacanthus ssp. sinuatus (A. Dietr.) N.P. Taylor -- accepted
  Ferocactus hamatacanthus var. hamatacanthus (Muehlenpf.) Britton & Rose -- not accepted -- Turk's head
  Ferocactus herrerae J.G. Ortega -- accepted
  Ferocactus histrix (DC.) G.E. Linds. -- accepted
  Ferocactus johnsonii (Parry ex Engelm.) Britton & Rose -- not accepted
  Ferocactus johnstonianus Britton & Rose -- accepted
  Ferocactus latispinus (Haw.) Britton & Rose -- accepted
  Ferocactus latispinus ssp. greenwoodii (Glass) N.P. Taylor -- accepted
  Ferocactus latispinus ssp. latispinus (Haw.) Britton & Rose -- accepted
  Ferocactus latispinus ssp. spiralis (Karw. ex Pfeiff.) N.P. Taylor -- accepted
  Ferocactus lecontei (Engelm.) Britton & Rose -- not accepted -- Biznaga-barril de Gila
  Ferocactus lindsayi Bravo -- accepted
  Ferocactus macrodiscus (Mart.) Britton & Rose -- accepted
  Ferocactus macrodiscus ssp. macrodiscus (Mart.) Britton & Rose -- accepted
  Ferocactus macrodiscus ssp. septentrionalis (J. Meyrán) N.P. Taylor -- accepted
  Ferocactus mathssonii (K. Schum.) N.P. Taylor -- not accepted
  Ferocactus mesae-verdae (Boissev. & C. Davidson) N.P. Taylor -- not accepted
  Ferocactus parviflorus (Clover & Jotter) N.P. Taylor -- not accepted
  Ferocactus peninsulae (F.A.C. Weber) Britton & Rose -- accepted
  Ferocactus pilosus (Galeotti) Werderm. -- accepted
  Ferocactus polyancistrus (Engelm. & J.M. Bigelow) N.P. Taylor -- not accepted
  Ferocactus pottsii (Salm-Dyck) Backeb. -- accepted
  Ferocactus pubispinus (Engelm.) N.P. Taylor -- not accepted
  Ferocactus robustus (Link & Otto) Britton & Rose -- accepted
  Ferocactus santa-maria Britton & Rose -- accepted
  Ferocactus scheeri (Salm-Dyck) N.P. Taylor -- not accepted
  Ferocactus schwarzii G.E. Linds. -- accepted
  Ferocactus setispinus (Engelm.) L.D. Benson -- not accepted
  Ferocactus spinosior (Engelm.) N.P. Taylor -- not accepted
  Ferocactus tiburonensis (G.E. Linds.) Backeb. -- accepted
  Ferocactus townsendianus Britton & Rose -- accepted
  Ferocactus uncinatus (Galeotti ex Pfeiff.) Britton & Rose -- not accepted
  Ferocactus viridescens (Torr. & A. Gray) Britton & Rose -- accepted -- Biznaga-barril verdosa, coast barrel cactus, San Diego barrel cactus
  Ferocactus whipplei (Engelm. & J.M. Bigelow) N.P. Taylor -- not accepted
  Ferocactus wislizeni (Engelm.) Britton & Rose -- accepted -- Biznaga-barril de Nuevo México, candy barrel cactus, fishhook barrel cactus
  Ferocactus wrightiae (L.D. Benson) N.P. Taylor -- not accepted
  Floribunda F. Ritter -- not accepted
  Floribunda pusilliflora F. Ritter -- not accepted
  Frailea Britton & Rose -- accepted
  Frailea alacriportana Backeb. & Voll -- not accepted
  Frailea albiareolata Buining & Brederoo -- not accepted
  Frailea albicolumnaris F. Ritter -- not accepted
  Frailea albifusca F. Ritter -- not accepted
  Frailea asperispina F. Ritter -- not accepted
  Frailea aureinitens Buining & Brederoo -- not accepted
  Frailea aureispina F. Ritter -- not accepted
  Frailea buenekeri W.R. Abraham -- accepted
  Frailea buenekeri ssp. buenekeri W.R. Abraham -- accepted
  Frailea buenekeri ssp. densispina Hofacker & K. Herm -- accepted
  Frailea caespitosa (Speg.) Britton & Rose -- not accepted
  Frailea carminifilamentosa Kilian ex Backeb. -- not accepted
  Frailea castanea Backeb. -- accepted
  Frailea castanea ssp. harmoniana (F. Ritter) P.J. Braun & Esteves -- not accepted
  Frailea cataphracta (Dams) Britton & Rose -- accepted
  Frailea cataphracta ssp. duchii (G. Moser) P.J. Braun & Esteves -- not accepted
  Frailea cataphracta ssp. melitae (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Frailea cataphracta ssp. tuyensis (Buining & G. Moser) P.J. Braun & Esteves -- not accepted
  Frailea cataphracta var. duchii G. Moser -- not accepted
  Frailea cataphracta var. tuyensis Buining & G. Moser -- not accepted
  Frailea chiquitana Cárdenas -- accepted
  Frailea concepcionensis Buining & G. Moser -- not accepted
  Frailea curvispina Buining & Brederoo -- accepted
  Frailea deminuta Buining & Brederoo -- not accepted
  Frailea fulviseta Buining & Brederoo -- accepted
  Frailea gracillima (Lem.) Britton & Rose -- accepted
  Frailea gracillima ssp. albifusca (F. Ritter) P.J. Braun & Esteves -- not accepted
  Frailea gracillima ssp. gracillima (Lem.) Britton & Rose -- accepted
  Frailea gracillima ssp. horstii (F. Ritter) P.J. Braun & Esteves -- accepted
  Frailea grahliana (F. Haage) Britton & Rose -- not accepted
  Frailea horstii F. Ritter -- not accepted
  Frailea ignacionensis Buining & G. Moser -- not accepted
  Frailea knippeliana (Quehl) Britton & Rose -- not accepted
  Frailea lepida Buining & Brederoo -- not accepted
  Frailea mammifera Buining & Brederoo -- accepted
  Frailea mammifera ssp. angelesiae R. Kiesling & Metzing -- accepted
  Frailea mammifera ssp. mammifera Buining & Brederoo -- accepted
  Frailea matoana Buining & Brederoo -- not accepted
  Frailea melitae Buining & Brederoo -- not accepted
  Frailea moseriana Buining & Brederoo -- not accepted
  Frailea perbella Prestlé -- not accepted
  Frailea perumbilicata F. Ritter -- not accepted
  Frailea phaeodisca (Speg.) Spreg. -- accepted
  Frailea pseudogracillima F. Ritter -- not accepted
  Frailea pulcherrima (Arechav.) Speg. -- not accepted
  Frailea pullispina Backeb. -- not accepted
  Frailea pumila (Lem.) Britton & Rose -- accepted
  Frailea pumila ssp. albiareolata (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Frailea pumila ssp. maior (F. Ritter) P.J. Braun & Esteves -- not accepted
  Frailea pumila var. maior F. Ritter -- not accepted
  Frailea pygmaea (Speg.) Britton & Rose -- accepted
  Frailea pygmaea ssp. albicolumnaris (F. Ritter) Hofacker -- accepted
  Frailea pygmaea ssp. altigibbera (F. Ritter) P.J. Braun & Esteves -- not accepted
  Frailea pygmaea ssp. asperispina (F. Ritter) P.J. Braun & Esteves -- not accepted
  Frailea pygmaea ssp. aureinitens (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Frailea pygmaea ssp. aureispina (F. Ritter) P.J. Braun & Esteves -- not accepted
  Frailea pygmaea ssp. fulviseta (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Frailea pygmaea ssp. lilalunula (F. Ritter) P.J. Braun & Esteves -- not accepted
  Frailea pygmaea ssp. pygmaea (Speg.) Britton & Rose -- accepted
  Frailea pygmaea ssp. tuyensis (Buining & G. Moser) Metzing -- accepted
  Frailea pygmaea var. altigibbera F. Ritter -- not accepted
  Frailea pygmaea var. lilalunula F. Ritter -- not accepted
  Frailea schilinzkyana (F. Haage ex K. Schum.) Britton & Rose -- accepted
  Frailea schilinzkyana ssp. concepcionensis (Buining & G. Moser) P.J. Braun & Esteves -- accepted
  Frailea schilinzkyana ssp. schilinzkyana (F. Haage ex K. Schum.) Britton & Rose -- accepted
  Frailea uhligiana Backeb. -- not accepted
  Frailea ybatense Buining & G. Moser -- not accepted
  Geohintonia Glass & W.A. Fitz Maur. -- accepted
  Geohintonia mexicana Glass & W.A. Fitz Maur. -- accepted
  Glandulicactus Backeb. -- not accepted
  Glandulicactus crassihamatus (F.A.C. Weber) Backeb. -- not accepted
  Glandulicactus mathssonii (K. Schum.) D.J. Ferguson -- not accepted
  Glandulicactus uncinatus (Galeotti ex Pfeiff.) Backeb. -- not accepted
  Glandulicactus uncinatus ssp. uncinatus (Galeotti ex Pfeiff.) Backeb. -- not accepted
  Glandulicactus wrightii (Engelm.) D.J. Ferguson -- not accepted
  Grusonia Rchb. f. ex Britton & Rose -- accepted
  Grusonia aggeria (Ralston & Hilsenb.) E.F. Anderson -- accepted
  Grusonia bradtiana (J.M. Coult.) Britton & Rose -- accepted
  Grusonia bulbispina (Engelm.) H. Rob. -- not accepted
  Grusonia clavata (Engelm.) H. Rob. -- accepted
  Grusonia densispina (Ralston & Hilsenb.) Rebman -- accepted
  Grusonia emoryi (Engelm.) Pinkava -- accepted
  Grusonia grahamii (Engelm.) H. Rob. -- accepted
  Grusonia hamiltonii H.E. Gates ex W.T. Marshall & T.M. Bock -- not accepted
  Grusonia invicta (Brandegee) E.F. Anderson -- not accepted
  Grusonia kunzei (Rose) Pinkava -- accepted
  Grusonia marenae (S.H. Parsons) E.F. Anderson -- not accepted
  Grusonia moelleri (A. Berger) E.F. Anderson -- not accepted
  Grusonia parishii (Orcutt) Pinkava -- accepted
  Grusonia pulchella (Engelm.) H. Rob. -- accepted
  Grusonia reflexispina (Wiggins & Rollins) E.F. Anderson -- not accepted
  Grusonia santamaria E.M. Baxter -- not accepted
  Grusonia schottii (Engelm.) H. Rob. -- accepted
  Gymnanthocereus Backeb. -- not accepted
  Gymnanthocereus altissimus F. Ritter -- not accepted
  Gymnanthocereus macracanthus F. Ritter -- not accepted
  Gymnanthocereus pilleifer F. Ritter -- not accepted
  Gymnocactus Backeb. -- not accepted
  Gymnocactus aguirreanus Glass & R.A. Foster -- not accepted
  Gymnocactus beguinii (F.A.C. Weber ex K. Schum.) Backeb. -- not accepted
  Gymnocactus roseanus (Boed.) Glass & R.A. Foster -- not accepted
  Gymnocalycium Pfeiff. ex Mittler -- accepted
  Gymnocalycium achirasense H. Till & Schatzl -- not accepted
  Gymnocalycium acorrugatum J.G. Lamb -- not accepted
  Gymnocalycium albispinum Backeb. -- not accepted
  Gymnocalycium alboareolatum Rausch -- accepted
  Gymnocalycium ambatoense Piltz -- not accepted
  Gymnocalycium amerhauseri H. Till -- accepted
  Gymnocalycium andreae (Boed.) Backeb. -- accepted
  Gymnocalycium angelae Mereg. -- not accepted
  Gymnocalycium anisitsii (K. Schum.) Britton & Rose -- accepted
  Gymnocalycium anisitsii ssp. anisitsii (K. Schum.) Britton & Rose -- accepted
  Gymnocalycium anisitsii ssp. damsii (K. Schum.) G.J. Charles -- accepted
  Gymnocalycium anisitsii ssp. multiproliferum (P.J. Braun) P.J. Braun & Esteves -- not accepted
  Gymnocalycium antherostele F. Ritter -- not accepted
  Gymnocalycium armatum F. Ritter -- not accepted
  Gymnocalycium artigas Herter -- not accepted
  Gymnocalycium asterium A. Cast. -- not accepted
  Gymnocalycium baldianum (Speg.) Speg. -- accepted
  Gymnocalycium bayrianum H. Till -- accepted
  Gymnocalycium berchtii Neuhuber -- accepted
  Gymnocalycium bicolor Schütz -- not accepted
  Gymnocalycium bodenbenderianus A. Berger -- not accepted
  Gymnocalycium borthii Koop ex H. Till -- not accepted
  Gymnocalycium bozsingianum Schütz -- not accepted
  Gymnocalycium brachyanthum (Gürke) Britton & Rose -- not accepted
  Gymnocalycium brachypetalum Speg. -- not accepted
  Gymnocalycium bruchii (Speg.) Hosseus -- accepted
  Gymnocalycium buenekeri (Buining) Swales -- not accepted
  Gymnocalycium calochlorum (Boed.) Y. Itô -- accepted
  Gymnocalycium capillaense (Schick) Hosseus -- accepted
  Gymnocalycium cardenasianum F. Ritter -- not accepted
  Gymnocalycium carminanthum Borth & Koop -- not accepted
  Gymnocalycium castellanosii Backeb. -- accepted
  Gymnocalycium castellanosii ssp. acorrugatum (J.G. Lamb) R. Kiesling & Metzing -- accepted
  Gymnocalycium castellanosii ssp. castellanosii Backeb. -- accepted
  Gymnocalycium castellanosii ssp. ferocior (Backeb. ex H. Till & Amerh.) G.J. Charles -- accepted
  Gymnocalycium chiquitanum Cárdenas -- accepted
  Gymnocalycium chubutense (Speg.) Speg. -- not accepted
  Gymnocalycium chuquisacanum Cárdenas -- not accepted
  Gymnocalycium damsii (K. Schum.) Britton & Rose -- not accepted
  Gymnocalycium delaetii (K. Schum.) Hosseus -- not accepted
  Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Mittler -- accepted
  Gymnocalycium erinaceum J.G. Lamb -- accepted
  Gymnocalycium erolesii Neuhuber & C.A.L. Bercht -- not accepted
  Gymnocalycium eurypleurum F. Ritter -- accepted
  Gymnocalycium eytianum Cárdenas -- not accepted
  Gymnocalycium ferox (Backeb.) Slaba -- not accepted
  Gymnocalycium ferrarii Rausch -- not accepted
  Gymnocalycium fischeri Halda, Kupcák, Lukasik & Sladk. -- not accepted
  Gymnocalycium fleischerianum (Mereg., Metzing & R. Kiesling) L. Vala -- not accepted
  Gymnocalycium fleischerianum var. anoplum Y. Itô -- not accepted
  Gymnocalycium fleischerianum var. fleischerianum (Mereg., Metzing & R. Kiesling) L. Vala -- not accepted
  Gymnocalycium gaponii Neuhuber -- not accepted
  Gymnocalycium gerardii (Boed.) Y. Itô -- not accepted
  Gymnocalycium gibbosum (Haw.) Pfeiff. ex Mittler -- accepted
  Gymnocalycium gibbosum ssp. borthii (Koop ex H. Till) G.J. Charles -- accepted
  Gymnocalycium gibbosum ssp. ferox (Labour. ex Rümpler) Papsch -- not accepted
  Gymnocalycium gibbosum ssp. gibbosum (Haw.) Pfeiff. ex Mittler -- accepted
  Gymnocalycium glaucum F. Ritter -- accepted
  Gymnocalycium glaucum ssp. ferrarii (Rausch) G.J. Charles -- accepted
  Gymnocalycium glaucum ssp. glaucum F. Ritter -- accepted
  Gymnocalycium grandiflorum Backeb. -- not accepted
  Gymnocalycium guerkeanum (Heese) Britton & Rose -- not accepted
  Gymnocalycium hamatum F. Ritter -- not accepted
  Gymnocalycium hammerschmidii Backeb. -- not accepted
  Gymnocalycium horridispinum G. Frank ex H. Till -- not accepted
  Gymnocalycium horstii Buining -- accepted
  Gymnocalycium horstii ssp. buenekeri (Swales) P.J. Braun & Hofacker -- accepted
  Gymnocalycium horstii ssp. horstii Buining -- accepted
  Gymnocalycium hossei (Haage) A. Berger -- accepted
  Gymnocalycium immemoratum A. Cast. & Lelong -- not accepted
  Gymnocalycium intertextum Backeb. -- not accepted
  Gymnocalycium izozogsii Cárdenas -- not accepted
  Gymnocalycium jochumii Neuhuber -- not accepted
  Gymnocalycium joossensianum (Boed.) Britton & Rose -- not accepted
  Gymnocalycium kieslingii O. Ferrari -- accepted
  Gymnocalycium kroenleinii R. Kiesling -- accepted
  Gymnocalycium kurtzianum (Gürke) Britton & Rose -- not accepted
  Gymnocalycium lagunillasense Cárdenas -- not accepted
  Gymnocalycium leeanum (Hook.) Britton & Rose -- not accepted
  Gymnocalycium loricatum (Speg.) Speg. -- not accepted
  Gymnocalycium marquezii Cárdenas -- not accepted
  Gymnocalycium marsoneri Fric ex Y. Itô -- accepted
  Gymnocalycium marsoneri ssp. marsoneri Fric ex Y. Itô -- accepted
  Gymnocalycium marsoneri ssp. matoense (Buining & Brederoo) P.J. Braun & Esteves -- accepted
  Gymnocalycium matoense Buining & Brederoo -- not accepted
  Gymnocalycium mazanense (Backeb.) Backeb. -- not accepted
  Gymnocalycium megalothelon (Sencke) Britton & Rose -- not accepted
  Gymnocalycium megatae Y. Itô -- not accepted
  Gymnocalycium melanocarpum (Arechav.) Britton & Rose -- not accepted
  Gymnocalycium mesopotamicum R. Kiesling -- accepted
  Gymnocalycium michoga Y. Itô -- not accepted
  Gymnocalycium mihanovichii (Fric & Gürke) Britton & Rose -- accepted
  Gymnocalycium millaresii Cárdenas -- not accepted
  Gymnocalycium monvillei (Lem.) Pfeiff. ex Britton & Rose -- accepted
  Gymnocalycium monvillei ssp. gertrudae (Neuhuber) Neuhuber -- not accepted
  Gymnocalycium monvillei ssp. horridispinum (G. Frank ex H. Till) H. Till -- accepted
  Gymnocalycium monvillei ssp. monvillei (Lem.) Pfeiff. ex Britton & Rose -- accepted
  Gymnocalycium monvillei var. gertrudae Neuhuber -- not accepted
  Gymnocalycium moserianum Schütz -- not accepted
  Gymnocalycium mostii (Gürke) Britton & Rose -- accepted
  Gymnocalycium mostii ssp. ferocius Backeb. ex H. Till & Amerh. -- not accepted
  Gymnocalycium multiflorum (Hook.) Britton & Rose -- not accepted
  Gymnocalycium neuhuberi H. Till & W. Till -- accepted
  Gymnocalycium neumannianum (Backeb.) Hutchison -- not accepted
  Gymnocalycium nidulans Backeb. -- not accepted
  Gymnocalycium nigriareolatum Backeb. -- accepted
  Gymnocalycium obductum Piltz -- not accepted
  Gymnocalycium ochoterenae Backeb. -- accepted
  Gymnocalycium oenanthemum Backeb. -- accepted
  Gymnocalycium onychacanthum Y. Itô -- not accepted
  Gymnocalycium paediophilum F. Ritter ex Schütz -- not accepted
  Gymnocalycium papschii H. Till -- not accepted
  Gymnocalycium paraguayense (Mundt ex K. Schum.) Hosseus -- accepted
  Gymnocalycium paraguayense f. fleischerianum Mereg., Metzing & R. Kiesling -- not accepted
  Gymnocalycium pflanzii (Vaupel) Werderm. -- accepted
  Gymnocalycium pflanzii ssp. argentinense H. Till & W. Till -- accepted
  Gymnocalycium pflanzii ssp. pflanzii (Vaupel) Werderm. -- accepted
  Gymnocalycium pflanzii ssp. zegarrae (Cárdenas) G.J. Charles -- accepted
  Gymnocalycium piltziorum Schütz -- not accepted
  Gymnocalycium poeschlii Neuhuber -- not accepted
  Gymnocalycium proliferum (Backeb.) Backeb. -- not accepted
  Gymnocalycium pseudomalacocarpus Backeb. -- not accepted
  Gymnocalycium pugionacanthum Backeb. ex H. Till -- accepted
  Gymnocalycium ragonesei A. Cast. -- accepted
  Gymnocalycium rauschii H. Till & W. Till -- not accepted
  Gymnocalycium reductum (Link) Pfeiff. ex Mittler -- accepted
  Gymnocalycium reductum var. leeanum (Hook.) Papsch -- accepted
  Gymnocalycium reductum var. reductum (Link) Pfeiff. ex Mittler -- accepted
  Gymnocalycium rhodantherum (Boed.) H. Till -- accepted
  Gymnocalycium riograndense Cárdenas -- not accepted
  Gymnocalycium riojense Fric ex H. Till & W. Till -- not accepted
  Gymnocalycium ritterianum Rausch -- accepted
  Gymnocalycium robustum R. Kiesling, O. Ferrari & Metzing -- accepted
  Gymnocalycium rosae H. Till -- not accepted
  Gymnocalycium saglione (F. Cels) Britton & Rose -- not accepted
  Gymnocalycium saglionis (F. Cels) Britton & Rose -- accepted
  Gymnocalycium saglionis ssp. tilcarense (Backeb.) H. Till & W. Till -- not accepted
  Gymnocalycium schatzlianum Strigl & W. Till -- not accepted
  Gymnocalycium schickendantzii (F.A.C. Weber) Britton & Rose -- accepted
  Gymnocalycium schickendantzii ssp. delaetii (K. Schum.) G.J. Charles -- accepted
  Gymnocalycium schickendantzii ssp. schickendantzii (F.A.C. Weber) Britton & Rose -- accepted
  Gymnocalycium schroederianum Osten -- accepted
  Gymnocalycium schroederianum ssp. bayense R. Kiesling -- not accepted
  Gymnocalycium schroederianum ssp. paucicostatum R. Kiesling -- not accepted
  Gymnocalycium schuetzianum H. Till & Schatzl -- not accepted
  Gymnocalycium sigelianum (Schick) Hosseus -- not accepted
  Gymnocalycium spegazzinii Britton & Rose -- accepted
  Gymnocalycium spegazzinii ssp. cardenasianum (F. Ritter) R. Kiesling & Metzing -- accepted
  Gymnocalycium spegazzinii ssp. spegazzinii Britton & Rose -- accepted
  Gymnocalycium stellatum (Scheidw.) Speg. -- accepted
  Gymnocalycium stellatum ssp. occultum Fric ex H. Till & W. Till -- not accepted
  Gymnocalycium stenopleurum F. Ritter -- accepted
  Gymnocalycium striglianum Jeggle & H. Till -- accepted
  Gymnocalycium stuckertii (Speg.) Britton & Rose -- not accepted
  Gymnocalycium sutterianum (Schick) Hosseus -- not accepted
  Gymnocalycium taningaense Piltz -- accepted
  Gymnocalycium terweemeanum (Teucq ex Duursma) Borgmann & Piltz -- not accepted
  Gymnocalycium tilcarense (Backeb.) H. Till & W. Till -- not accepted
  Gymnocalycium tillianum Rausch -- not accepted
  Gymnocalycium tobuschianum Schick-Freib. -- not accepted
  Gymnocalycium tudae Y. Itô -- not accepted
  Gymnocalycium uebelmannianum Rausch -- accepted
  Gymnocalycium uruguayense (Arechav.) Britton & Rose -- accepted
  Gymnocalycium valnicekianum Jajó -- not accepted
  Gymnocalycium vatteri Buining -- not accepted
  Gymnocalycium walteri H. Till -- not accepted
  Gymnocalycium weissianum Backeb. -- not accepted
  Gymnocalycium zegarrae Cárdenas -- not accepted
  Gymnocereus Backeb. -- not accepted
  Gymnocereus amstutziae Rauh & Backeb. -- not accepted
  Gymnocereus microspermus (Werderm. & Backeb.) Backeb. -- not accepted
  Haageocereus Backeb. -- accepted
  Haageocereus acanthocladus Rauh & Backeb. -- not accepted
  Haageocereus achaetus Rauh & Backeb. -- not accepted
  Haageocereus acranthus (Vaupel) Backeb. -- accepted
  Haageocereus acranthus ssp. acranthus (Vaupel) Backeb. -- accepted
  Haageocereus acranthus ssp. olowinskianus (Backeb.) Ostolaza -- accepted
  Haageocereus akersii Backeb. -- not accepted
  Haageocereus albispinus (Akers) Backeb. -- not accepted
  Haageocereus ambiguus Rauh & Backeb. -- not accepted
  Haageocereus aureispinus Rauh & Backeb. -- not accepted
  Haageocereus australis Backeb. -- not accepted
  Haageocereus cephalomacrostibas (Backeb.) P.V. Heath -- not accepted
  Haageocereus chalaensis F. Ritter -- not accepted
  Haageocereus chilensis F. Ritter ex D.R. Hunt -- accepted
  Haageocereus chosicensis (Werderm. & Backeb.) Backeb. -- not accepted
  Haageocereus chrysacanthus (Akers) Backeb. -- not accepted
  Haageocereus chryseus F. Ritter -- not accepted
  Haageocereus churinensis (F. Ritter) P.V. Heath -- not accepted
  Haageocereus clavispinus Rauh & Backeb. -- not accepted
  Haageocereus crassiareolatus Rauh & Backeb. -- not accepted
  Haageocereus cuzcoensis (Kníze) P.V. Heath -- not accepted
  Haageocereus decumbens (Vaupel) Backeb. -- accepted
  Haageocereus decumbens ssp. tenuis (F. Ritter) D.R. Hunt -- not accepted
  Haageocereus deflexispinus Rauh & Backeb. -- not accepted
  Haageocereus dichromus Rauh & Backeb. -- not accepted
  Haageocereus divaricatispinus Rauh & Backeb. -- not accepted
  Haageocereus fulvus F. Ritter -- not accepted
  Haageocereus horrens Rauh & Backeb. -- not accepted
  Haageocereus icensis Backeb. ex F. Ritter -- not accepted
  Haageocereus icosagonoides Rauh & Backeb. -- not accepted
  Haageocereus johnsonii (F. Ritter) P.V. Heath -- not accepted
  Haageocereus lachayensis Rauh & Backeb. -- not accepted
  Haageocereus lanugispinus F. Ritter -- not accepted
  Haageocereus laredensis Backeb. -- not accepted
  Haageocereus litoralis Rauh & Backeb. -- not accepted
  Haageocereus longiareolatus Rauh & Backeb. -- not accepted
  Haageocereus longicomus (F. Ritter) P.V. Heath -- not accepted
  Haageocereus mamillatus var. brevior Rauh & Backeb. -- not accepted
  Haageocereus multicolorispinus Buining -- not accepted
  Haageocereus olowinskianus Backeb. -- not accepted
  Haageocereus pacalaensis Backeb. -- accepted
  Haageocereus pachystele Rauh & Backeb. -- not accepted
  Haageocereus paradoxus Rauh & Backeb. -- not accepted
  Haageocereus peniculatus Rauh & Backeb. -- not accepted
  Haageocereus piliger Rauh & Backeb. -- not accepted
  Haageocereus platinospinus (Werderm. & Backeb.) Backeb. -- accepted
  Haageocereus pluriflorus Rauh & Backeb. -- not accepted
  Haageocereus pseudoacranthus Rauh & Backeb. -- not accepted
  Haageocereus pseudomelanostele (Werderm. & Backeb.) Backeb. -- accepted
  Haageocereus pseudomelanostele ssp. acanthocladus (Rauh & Backeb.) Ostolaza -- accepted
  Haageocereus pseudomelanostele ssp. aureispinus (Rauh & Backeb.) Ostolaza -- accepted
  Haageocereus pseudomelanostele ssp. carminiflorus (Rauh & Backeb.) Ostolaza -- not accepted
  Haageocereus pseudomelanostele ssp. chryseus D.R. Hunt -- accepted
  Haageocereus pseudomelanostele ssp. pseudomelanostele (Werderm. & Backeb.) Backeb. -- accepted
  Haageocereus pseudomelanostele ssp. turbidus (Rauh & Backeb.) Ostolaza -- accepted
  Haageocereus pseudomelanostele var. carminiflorus Rauh & Backeb. -- not accepted
  Haageocereus pseudoversicolor Rauh & Backeb. -- accepted
  Haageocereus rauhii (Backeb.) P.V. Heath -- not accepted
  Haageocereus repens Rauh & Backeb. -- not accepted
  Haageocereus setosus (Akers) Backeb. -- not accepted
  Haageocereus subtilispinus F. Ritter -- not accepted
  Haageocereus symmetros Rauh & Backeb. -- not accepted
  Haageocereus tenuis F. Ritter -- accepted
  Haageocereus tenuispinus Rauh & Backeb. -- not accepted
  Haageocereus torataensis (F. Ritter) P.V. Heath -- not accepted
  Haageocereus turbidus Rauh & Backeb. -- not accepted
  Haageocereus versicolor (Werderm. & Backeb.) Backeb. -- accepted
  Haageocereus vulpes F. Ritter -- not accepted
  Haageocereus weberbaueri (K. Schum. ex Vaupel) D.R. Hunt -- not accepted
  Haageocereus winterianus (F. Ritter) P.V. Heath -- not accepted
  Haageocereus zangalensis F. Ritter -- not accepted
  Haageocereus zonatus Rauh & Backeb. -- not accepted
  Hamatocactus Britton & Rose -- not accepted
  Hamatocactus crassihamatus (F.A.C. Weber) Buxb. -- not accepted
  Hamatocactus uncinatus (Galeotti ex Pfeiff.) Orcutt -- not accepted
  Harrisia Britton -- accepted -- applecactus
  Harrisia aboriginum Small ex Britton & Rose -- accepted -- aboriginal pricklyapple, prickly applecactus
  Harrisia adscendens (Gürke) Britton & Rose -- accepted
  Harrisia balansae (K. Schum.) N.P. Taylor & Zappi -- accepted
  Harrisia bonplandii (J. Parm. & Pfeiff.) Britton & Rose -- not accepted
  Harrisia eriophora (Pfeiff.) Britton -- accepted
  Harrisia fragrans Small ex Britton & Rose -- accepted -- Caribbean applecactus
  Harrisia gracilis (Mill.) Britton -- accepted
  Harrisia hahniana (Backeb.) Kimnach & Hutchison -- not accepted
  Harrisia martinii (Labour.) Britton -- accepted -- mooncactus
  Harrisia pomanensis (F.A.C. Weber ex K. Schum.) Britton & Rose -- accepted -- applecactus
  Harrisia regelii (Weing.) Borg -- accepted
  Harrisia simpsonii Small ex Britton & Rose -- accepted -- Simpson's applecactus
  Harrisia tetracantha (Labour.) D.R. Hunt -- accepted
  Harrisia tortuosa (J. Forbes ex Otto & A. Dietr.) Britton & Rose -- accepted
  Haseltonia Backeb. -- not accepted
  Haseltonia columna-trajani (Karw.) Backeb. -- not accepted
  Hatiora Britton & Rose -- accepted
  Hatiora bambusoides (F.A.C. Weber) Britton & Rose -- not accepted
  Hatiora cylindrica Britton & Rose -- accepted
  Hatiora epiphylloides (Porto & Werderm.) Buxb. -- accepted
  Hatiora epiphylloides ssp. bradei (Porto & A. Cast.) Barthlott & N.P. Taylor -- accepted
  Hatiora epiphylloides ssp. epiphylloides (Porto & Werderm.) Buxb. -- accepted
  Hatiora gaertneri (Regel) Barthlott -- accepted
  Hatiora herminiae (Porto & A. Cast.) Barthlott -- accepted
  Hatiora rosea (Lagerh.) Barthlott -- accepted
  Hatiora salicornioides (Haw.) Britton & Rose -- accepted
  Heliabravoa Backeb. -- not accepted
  Heliabravoa chende (Rol.-Goss.) Backeb. -- not accepted
  Helianthocereus Backeb. -- not accepted
  Helianthocereus antezanae (Cárdenas) Backeb. -- not accepted
  Helianthocereus atacamensis (Phil.) Backeb. -- not accepted
  Helianthocereus bertramianus (Backeb.) Backeb. -- not accepted
  Helianthocereus conaconensis (Cárdenas) Backeb. -- not accepted
  Helianthocereus crassicaulis Backeb. -- not accepted
  Helianthocereus escayachensis (Cárdenas) Backeb. -- not accepted
  Helianthocereus grandiflorus (Britton & Rose) Backeb. -- not accepted
  Helianthocereus herzogianus (Cárdenas) Backeb. -- not accepted
  Helianthocereus huascha (F.A.C. Weber) Backeb. -- not accepted
  Helianthocereus hyalacanthus (Speg.) Backeb. -- not accepted
  Helianthocereus narvaecensis (Cárdenas) Backeb. -- not accepted
  Helianthocereus orurensis (Cárdenas) Backeb. -- not accepted
  Helianthocereus pasacanus (F.A.C. Weber ex Rümpler) Backeb. -- not accepted
  Helianthocereus pecheretianus var. viridior Backeb. -- not accepted
  Helianthocereus poco (Backeb.) Backeb. -- not accepted
  Helianthocereus pseudocandicans Backeb. -- not accepted
  Helianthocereus randallii (Cárdenas) Backeb. -- not accepted
  Helianthocereus tarijensis (Vaupel) Backeb. -- not accepted
  Heliocereus (A. Berger) Britton & Rose -- not accepted
  Heliocereus aurantiacus Kimnach -- not accepted
  Heliocereus aurantiacus var. blomianus Kimnach -- not accepted
  Heliocereus cinnabarinus (Weing.) Britton & Rose -- not accepted
  Heliocereus elegantissimus Britton & Rose -- not accepted
  Heliocereus heterodoxus Standl. & Steyerm. -- not accepted
  Heliocereus luzmariae Scheinvar -- not accepted
  Heliocereus schrankii (Zucc. ex Seitz) Britton & Rose -- not accepted
  Heliocereus speciosissimus (DC.) Y. Itô -- not accepted
  Heliocereus speciosus (Cav.) Britton & Rose -- not accepted
  Hertrichocereus Backeb. -- not accepted
  Hertrichocereus beneckei (Ehrenb.) Backeb. -- not accepted
  Hildewintera F. Ritter ex G.D. Rowley -- not accepted
  Hildewintera aureispina (F. Ritter) F. Ritter ex G.D. Rowley -- not accepted
  Hildewintera colademononis Diers & Krahn -- not accepted
  Homalocephala Britton & Rose -- not accepted
  Homalocephala texensis (Hopffer) Britton & Rose -- not accepted
  Horridocactus Backeb. -- not accepted
  Horridocactus aconcaguensis (F. Ritter) Backeb. -- not accepted
  Horridocactus andicola F. Ritter -- not accepted
  Horridocactus armatus (F. Ritter) Backeb. -- not accepted
  Horridocactus atroviridis (F. Ritter) Backeb. -- not accepted
  Horridocactus carrizalensis (F. Ritter) Backeb. -- not accepted
  Horridocactus choapensis (F. Ritter) Backeb. -- not accepted
  Horridocactus crispus (F. Ritter) Backeb. -- not accepted
  Horridocactus curvispinus (Bertero ex Colla) Backeb. -- not accepted
  Horridocactus echinus (F. Ritter) Backeb. -- not accepted
  Horridocactus eriosyzoides F. Ritter -- not accepted
  Horridocactus garaventai F. Ritter -- not accepted
  Horridocactus grandiflorus (F. Ritter) Backeb. -- not accepted
  Horridocactus heinrichianus Backeb. -- not accepted
  Horridocactus kesselringianus Dölz -- not accepted
  Horridocactus lissocarpus (F. Ritter) Backeb. -- not accepted
  Horridocactus marksianus (F. Ritter) Backeb. -- not accepted
  Horridocactus nigricans (Dietr. ex K. Schum.) Backeb. & Dölz -- not accepted
  Horridocactus robustus (F. Ritter) Y. Itô -- not accepted
  Horridocactus tuberisulcatus (Jacobi) Y. Itô -- not accepted
  Horridocactus vallenarensis (F. Ritter) Backeb. -- not accepted
  Hylocereus (A. Berger) Britton & Rose -- accepted -- nightblooming cactus
  Hylocereus antiguensis Britton & Rose -- not accepted
  Hylocereus calcaratus (F.A.C. Weber) Britton & Rose -- accepted
  Hylocereus compressus Y. Itô -- not accepted
  Hylocereus costaricensis (F.A.C. Weber) Britton & Rose -- accepted -- Costa Rica nightblooming cactus
  Hylocereus cubensis Britton & Rose -- not accepted
  Hylocereus escuintlensis Kimnach -- accepted
  Hylocereus estebanensis Backeb. -- not accepted
  Hylocereus extensus (Salm-Dyck ex DC.) Britton & Rose ex Rose -- accepted
  Hylocereus guatemalensis (Eichlam) Britton & Rose -- accepted
  Hylocereus lemairei (Hook.) Britton & Rose -- not accepted
  Hylocereus megalanthus (K. Schum. ex Vaupel) Ralf Bauer -- accepted
  Hylocereus minutiflorus Britton & Rose -- accepted
  Hylocereus monacanthus (Lem.) Britton & Rose -- accepted -- nightblooming cereus
  Hylocereus napoleonis (Graham) Britton & Rose -- not accepted
  Hylocereus ocamponis (Salm-Dyck) Britton & Rose -- accepted
  Hylocereus peruvianus Backeb. -- not accepted
  Hylocereus plumieri (Rol.-Goss.) Lourteig -- not accepted
  Hylocereus polyrhizus (F.A.C. Weber) Britton & Rose -- not accepted
  Hylocereus purpusii (Weing.) Britton & Rose -- not accepted
  Hylocereus scandens (Salm-Dyck) Backeb. -- not accepted
  Hylocereus setaceus (Salm-Dyck ex DC.) Ralf Bauer -- accepted
  Hylocereus stenopterus (F.A.C. Weber) Britton & Rose -- accepted
  Hylocereus triangularis (L.) Britton & Rose -- accepted
  Hylocereus tricae (D.R. Hunt) Ralf Bauer -- accepted
  Hylocereus trigonus (Haw.) Saff. -- not accepted -- strawberry-pear
  Hylocereus undatus (Haw.) Britton & Rose -- accepted -- nightblooming cactus, Pitahaya orejona
  Hylocereus venezuelensis Britton & Rose -- not accepted
  Hymenorebutia Fric ex Buining -- not accepted
  Hymenorebutia aurea (Britton & Rose) F. Ritter -- not accepted
  Hymenorebutia chlorogona (Wessner) F. Ritter -- not accepted
  Hymenorebutia chrysantha (Werderm.) F. Ritter -- not accepted
  Hymenorebutia cintiensis (Cárdenas) F. Ritter -- not accepted
  Hymenorebutia drijveriana (Backeb.) F. Ritter -- not accepted
  Hymenorebutia kuehnrichii (Fric) F. Ritter -- not accepted
  Hymenorebutia pusilla (F. Ritter) F. Ritter -- not accepted
  Hymenorebutia quinesensis (Rausch) F. Ritter -- not accepted
  Hymenorebutia tiegeliana (Wessner) F. Ritter -- not accepted
  Hymenorebutia torataensis F. Ritter -- not accepted
  Hymenorebutia torreana F. Ritter -- not accepted
  Islaya Backeb. -- not accepted
  Islaya bicolor Akers & Buining -- not accepted
  Islaya brevicylindrica Rauh & Backeb. -- not accepted
  Islaya copiapoides Rauh & Backeb. -- not accepted
  Islaya divaricatiflora F. Ritter -- not accepted
  Islaya grandiflorens Rauh & Backeb. -- not accepted
  Islaya grandis Rauh & Backeb. -- not accepted
  Islaya islayensis (C.F. Först.) Backeb. -- not accepted
  Islaya islayensis var. minor (Backeb.) F. Ritter -- not accepted
  Islaya krainziana F. Ritter -- not accepted
  Islaya laui (Lüthy) Faúndez & R. Kiesling -- not accepted
  Islaya maritima F. Ritter -- not accepted
  Islaya minor Backeb. -- not accepted
  Islaya minuscula F. Ritter -- not accepted
  Islaya molendensis (Vaupel) Backeb. -- not accepted
  Islaya omasensis Ostolaza & Mischler -- not accepted
  Islaya paucispinosa Rauh & Backeb. -- not accepted
  Islaya unguispina F. Ritter -- not accepted
  Jasminocereus Britton & Rose -- accepted
  Jasminocereus galapagensis (F.A.C. Weber) Britton & Rose -- not accepted
  Jasminocereus howellii E.Y. Dawson -- not accepted
  Jasminocereus sclerocarpus (K. Schum.) Backeb. -- not accepted
  Jasminocereus thouarsii (F.A.C. Weber) Backeb. -- accepted
  Kadenicarpus Doweld -- not accepted
  Kadenicarpus pseudomacrochele (Backeb.) Doweld -- not accepted
  Krainzia Backeb. -- not accepted
  Krainzia guelzowiana (Werderm.) Backeb. -- not accepted
  Krainzia longiflora (Britton & Rose) Backeb. -- not accepted
  Lasiocereus F. Ritter -- accepted
  Lasiocereus fulvus F. Ritter -- accepted
  Lasiocereus rupicola F. Ritter -- accepted
  Lemaireocereus Britton & Rose -- not accepted
  Lemaireocereus aragonii (F.A.C. Weber) Britton & Rose -- not accepted
  Lemaireocereus beneckei (Ehrenb.) Britton & Rose -- not accepted
  Lemaireocereus cartwrightianus Britton & Rose -- not accepted
  Lemaireocereus chende (Rol.-Goss.) Britton & Rose -- not accepted
  Lemaireocereus chichipe (Rol.-Goss.) Britton & Rose -- not accepted
  Lemaireocereus deficiens (Otto & A. Dietr.) Britton & Rose -- not accepted
  Lemaireocereus eichlamii Britton & Rose -- not accepted
  Lemaireocereus godingianus Britton & Rose -- not accepted
  Lemaireocereus griseus (Haw.) Britton & Rose -- not accepted
  Lemaireocereus hollianus (F.A.C. Weber) Britton & Rose -- not accepted
  Lemaireocereus hystrix (Haw.) Britton & Rose -- not accepted
  Lemaireocereus laetus (Kunth) Britton & Rose -- not accepted
  Lemaireocereus longispinus Britton & Rose -- not accepted
  Lemaireocereus martinezii J.G. Ortega -- not accepted
  Lemaireocereus mixtecensis (J.A. Purpus) Britton & Rose -- not accepted
  Lemaireocereus montanus Britton & Rose -- not accepted
  Lemaireocereus pruinosus (Otto ex Pfeiff.) Britton & Rose -- not accepted
  Lemaireocereus queretaroensis (F.A.C. Weber) Saff. -- not accepted
  Lemaireocereus quevedonis J.G. Ortega -- not accepted
  Lemaireocereus stellatus (Pfeiff.) Britton & Rose -- not accepted
  Lemaireocereus thurberi (Engelm.) Britton & Rose -- not accepted
  Lemaireocereus treleasei Rose -- not accepted
  Lemaireocereus weberi (J.M. Coult.) Britton & Rose -- not accepted
  Leocereus Britton & Rose -- accepted
  Leocereus bahiensis Britton & Rose -- accepted
  Leocereus bahiensis ssp. barreirensis (P.J. Braun & Esteves) P.J. Braun & Esteves -- not accepted
  Leocereus bahiensis ssp. exiguospinus (P.J. Braun & Esteves) P.J. Braun & Esteves -- not accepted
  Leocereus bahiensis ssp. robustispinus (P.J. Braun & Esteves) P.J. Braun & Esteves -- not accepted
  Leocereus bahiensis ssp. urandianus (P.J. Braun & Esteves) P.J. Braun & Esteves -- not accepted
  Leocereus bahiensis var. barreirensis P.J. Braun & Esteves -- not accepted
  Leocereus bahiensis var. exiguospinus P.J. Braun & Esteves -- not accepted
  Leocereus bahiensis var. robustispinus P.J. Braun & Esteves -- not accepted
  Leocereus glaziovii (K. Schum.) Britton & Rose -- not accepted
  Leocereus melanurus (K. Schum.) Britton & Rose -- not accepted
  Leocereus paulensis Speg. -- not accepted
  Leocereus urandianus F. Ritter -- not accepted
  Lepidocoryphantha Backeb. -- not accepted
  Lepidocoryphantha macromeris (Engelm.) Backeb. -- not accepted
  Lepidocoryphantha macromeris ssp. runyonii (Britton & Rose) Doweld -- not accepted
  Lepidocoryphantha runyonii (Britton & Rose) Backeb. -- not accepted
  Lepismium Pfeiff. -- accepted
  Lepismium aculeatum (F.A.C. Weber) Barthlott & N.P. Taylor -- not accepted
  Lepismium bolivianum (Britton) Barthlott -- not accepted
  Lepismium brevispinum Barthlott -- not accepted
  Lepismium chrysanthum (Loefgr.) Backeb. -- not accepted
  Lepismium crenatum (Britton) Barthlott -- not accepted
  Lepismium cruciforme (Vell.) Miq. -- accepted
  Lepismium dissimile G. Lindb. -- not accepted
  Lepismium epiphyllanthoides Backeb. -- not accepted
  Lepismium floccosum (Salm-Dyck ex Pfeiff.) Backeb. -- not accepted
  Lepismium gibberulum (F.A.C. Weber) Backeb. -- not accepted
  Lepismium grandiflorum (Haw.) Backeb. -- not accepted
  Lepismium houlletianum (Lem.) Barthlott -- accepted
  Lepismium ianthothele (Monv.) Barthlott -- not accepted
  Lepismium incachacanum (Cárdenas) Barthlott -- accepted
  Lepismium lineare (K. Schum.) Barthlott -- not accepted
  Lepismium lorentzianum (Griseb.) Barthlott -- accepted
  Lepismium lumbricoides (Lem.) Barthlott -- accepted
  Lepismium megalanthum (Loefgr.) Backeb. -- not accepted
  Lepismium micranthum (Vaupel) Barthlott -- not accepted
  Lepismium miyagawae (Barthlott & Rauh) Barthlott -- not accepted
  Lepismium monacanthum (Griseb.) Barthlott -- not accepted
  Lepismium neves-armondii (K. Schum.) Backeb. -- not accepted
  Lepismium pacheco-leonis (Loefgr.) Backeb. -- not accepted
  Lepismium paradoxum Salm-Dyck ex Pfeiff. -- not accepted
  Lepismium paranganiense (Cárdenas) Barthlott -- not accepted
  Lepismium pittieri (Britton & Rose) Backeb. -- not accepted
  Lepismium pulvinigerum (G. Lindb.) Backeb. -- not accepted
  Lepismium puniceodiscus var. chrysocarpum (Loefgr.) Backeb. -- not accepted
  Lepismium saxatile Friedrich, Redecker & Backeb. -- not accepted
  Lepismium trigonum (Pfeiff.) Backeb. -- not accepted
  Lepismium tucumanense (F.A.C. Weber) Backeb. -- not accepted
  Lepismium warmingianum (K. Schum.) Barthlott -- accepted
  Leptocereus (A. Berger) Britton & Rose -- accepted
  Leptocereus arboreus Britton & Rose -- accepted
  Leptocereus assurgens (C. Wright ex Griseb.) Britton & Rose -- accepted
  Leptocereus carinatus Areces -- accepted
  Leptocereus ekmanii (Werderm.) F.M. Knuth -- not accepted
  Leptocereus grantianus Britton -- accepted -- sebucan
  Leptocereus leonii Britton & Rose -- accepted
  Leptocereus maxonii Britton & Rose -- not accepted
  Leptocereus paniculatus (Lam.) D.R. Hunt -- accepted
  Leptocereus prostratus Britton & Rose -- not accepted
  Leptocereus quadricostatus (Bello) Britton & Rose -- accepted -- pitahaya
  Leptocereus santamarinae Areces -- not accepted
  Leptocereus scopulophilus Areces -- accepted
  Leptocereus sylvestris Britton & Rose -- accepted
  Leptocereus weingartianus (E. Hartmann in Dams) Britton & Rose -- accepted
  Leptocereus wrightii León -- accepted
  Leuchtenbergia Hook. -- accepted
  Leuchtenbergia principis Hook. -- accepted
  Leucostele Backeb. -- not accepted
  Leucostele rivieri Backeb. -- not accepted
  Lobeira Alexander -- not accepted
  Lobeira macdougallii Alexander -- not accepted
  Lobivia Britton & Rose -- not accepted
  Lobivia aculeata Buining -- not accepted
  Lobivia adpressispina F. Ritter -- not accepted
  Lobivia aguilarii R. Vásquez -- not accepted
  Lobivia akersii Rausch -- not accepted
  Lobivia allegraiana Backeb. -- not accepted
  Lobivia amblayensis Rausch -- not accepted
  Lobivia andalgalensis (F.A.C. Weber ex K. Schum.) Britton & Rose -- not accepted
  Lobivia arachnacantha Buining & F. Ritter -- not accepted
  Lobivia argentea Backeb. -- not accepted
  Lobivia atrovirens Backeb. -- not accepted
  Lobivia auranitida Wessner -- not accepted
  Lobivia aurantiaca Backeb. -- not accepted
  Lobivia aurea (Britton & Rose) Backeb. -- not accepted
  Lobivia aureolilacina Cárdenas -- not accepted
  Lobivia aureosenilis Kníze -- not accepted
  Lobivia backebergiana Y. Itô -- not accepted
  Lobivia backebergii (Werderm.) Backeb. -- not accepted
  Lobivia backebergii ssp. hertrichiana (Backeb.) Rausch ex G.D. Rowley -- not accepted
  Lobivia backebergii ssp. schieliana (Backeb.) Rausch ex G.D. Rowley -- not accepted
  Lobivia backebergii ssp. wrightiana (Backeb.) Rausch ex G.D. Rowley -- not accepted
  Lobivia backebergii ssp. zecheri (Rausch) Rausch ex G.D. Rowley -- not accepted
  Lobivia backebergii var. hertrichiana (Backeb.) Rausch -- not accepted
  Lobivia backebergii var. schieliana (Backeb.) Rausch -- not accepted
  Lobivia backebergii var. winteriana (F. Ritter) Rausch -- not accepted
  Lobivia backebergii var. wrightiana (Backeb.) Rausch -- not accepted
  Lobivia backebergii var. zecheri (Rausch) Rausch -- not accepted
  Lobivia binghamiana Backeb. -- not accepted
  Lobivia boliviensis Britton & Rose -- not accepted
  Lobivia brachyantha Wessner -- not accepted
  Lobivia breviflora Backeb. -- not accepted
  Lobivia bruchii Britton & Rose -- not accepted
  Lobivia brunneo-rosea Backeb. -- not accepted
  Lobivia buiningiana F. Ritter -- not accepted
  Lobivia cachensis (Speg.) Britton & Rose -- not accepted
  Lobivia caespitosa (J.A. Purpus) Britton & Rose -- not accepted
  Lobivia caineana Cárdenas -- not accepted
  Lobivia calorubra (Cárdenas) Rausch -- not accepted
  Lobivia camataquiensis Cárdenas -- not accepted
  Lobivia campicola F. Ritter -- not accepted
  Lobivia cardenasiana Rausch -- not accepted
  Lobivia cariquinensis Cárdenas -- not accepted
  Lobivia carminantha Backeb. -- not accepted
  Lobivia charazanensis Cárdenas -- not accepted
  Lobivia charcasina Cárdenas -- not accepted
  Lobivia chionanthus (Speg.) Britton & Rose -- not accepted
  Lobivia chorillosensis Rausch -- not accepted
  Lobivia chorrillosensis Rausch -- not accepted
  Lobivia chrysacantha (Backeb.) H.P. Kelsey & Dayton -- not accepted
  Lobivia chrysantha (Werderm.) Backeb. -- not accepted
  Lobivia chrysantha ssp. jajoiana (Backeb.) Rausch ex G.D. Rowley -- not accepted
  Lobivia chrysantha ssp. marsoneri (Werderm.) Rausch ex G.D. Rowley -- not accepted
  Lobivia chrysantha var. jajoiana (Backeb.) Rausch -- not accepted
  Lobivia chrysantha var. marsoneri (Werderm.) Rausch -- not accepted
  Lobivia chrysochete (Werderm.) Wessner -- not accepted
  Lobivia cinnabarina (Hook.) Britton & Rose -- not accepted
  Lobivia cinnabarina ssp. prestoana (Cárdenas) Rausch ex G.D. Rowley -- not accepted
  Lobivia cinnabarina ssp. taratensis (Cárdenas) G.D. Rowley -- not accepted
  Lobivia cintiensis Cárdenas -- not accepted
  Lobivia claeysiana Backeb. -- not accepted
  Lobivia corbula (Herrera) Britton & Rose -- not accepted
  Lobivia cornuta Rausch -- not accepted
  Lobivia crassicaulis R. Kiesling -- not accepted
  Lobivia cruciaureispina Kníze -- not accepted
  Lobivia culpinensis F. Ritter -- not accepted
  Lobivia cumingii (Hopffer) Britton & Rose -- not accepted
  Lobivia cylindracea Backeb. -- not accepted
  Lobivia cylindrica Backeb. -- not accepted
  Lobivia draxleriana Rausch -- not accepted
  Lobivia drijveriana Backeb. -- not accepted
  Lobivia drijveriana var. astranthema Backeb. -- not accepted
  Lobivia duursmaiana Backeb. -- not accepted
  Lobivia echinata Rausch -- not accepted
  Lobivia einsteinii (Fric) Rausch -- not accepted
  Lobivia elongata Backeb. -- not accepted
  Lobivia emmae Backeb. -- not accepted
  Lobivia euanthema Backeb. -- not accepted
  Lobivia eucaliptana Backeb. -- not accepted
  Lobivia famatimensis (Speg.) Britton & Rose -- not accepted
  Lobivia ferox Britton & Rose -- not accepted
  Lobivia formosa (Pfeiff.) Dodds -- not accepted
  Lobivia formosa ssp. bruchii (Britton & Rose) Rausch -- not accepted
  Lobivia formosa ssp. grandis (Britton & Rose) Rausch -- not accepted
  Lobivia formosa ssp. tarijensis (Vaupel) Rausch -- not accepted
  Lobivia formosa var. bruchii (Britton & Rose) Rausch -- not accepted
  Lobivia formosa var. grandis (Britton & Rose) Rausch -- not accepted
  Lobivia fricii Rausch -- not accepted
  Lobivia glauca Rausch -- not accepted
  Lobivia glaucescens F. Ritter -- not accepted
  Lobivia grandiflora Werderm. -- not accepted
  Lobivia grandiflora Britton & Rose -- not accepted
  Lobivia grandis Britton & Rose -- not accepted
  Lobivia haageana Backeb. -- not accepted
  Lobivia haematantha (Speg.) Britton & Rose -- not accepted
  Lobivia haematantha ssp. chorillosensis (Rausch) G.D. Rowley -- not accepted
  Lobivia haematantha ssp. densispina (Werderm.) Rausch ex G.D. Rowley -- not accepted
  Lobivia haematantha ssp. kuehnrichii (Fric) G.D. Rowley -- not accepted
  Lobivia haematantha var. chorrillosensis (Rausch) Rausch -- not accepted
  Lobivia haematantha var. densispina (Werderm.) Rausch -- not accepted
  Lobivia haematantha var. kuehnrichii (Fric) Rausch -- not accepted
  Lobivia hastifera Werderm. -- not accepted
  Lobivia hermanniana Backeb. -- not accepted
  Lobivia hertrichiana Backeb. -- not accepted
  Lobivia higginsiana Backeb. -- not accepted
  Lobivia hoffmanniana Backeb. -- not accepted
  Lobivia horrida F. Ritter -- not accepted
  Lobivia hualfinensis Rausch -- not accepted
  Lobivia hualfinensis var. fechseri Rausch -- not accepted
  Lobivia huascha (F.A.C. Weber) W.T. Marshall -- not accepted
  Lobivia huascha var. robusta Rausch -- not accepted
  Lobivia huilcanota Rauh & Backeb. -- not accepted
  Lobivia hystrix F. Ritter -- not accepted
  Lobivia incaica Backeb. -- not accepted
  Lobivia incuiensis Rauh & Backeb. -- not accepted
  Lobivia intermedia Rausch -- not accepted
  Lobivia iridescens Backeb. -- not accepted
  Lobivia jajoiana Backeb. -- not accepted
  Lobivia johnsoniana Backeb. -- not accepted
  Lobivia kieslingii Rausch -- not accepted
  Lobivia kuehnrichii Fric -- not accepted
  Lobivia kupperiana Backeb. -- not accepted
  Lobivia larae Cárdenas -- not accepted
  Lobivia lateritia (Gürke) Britton & Rose -- not accepted
  Lobivia laui Donald -- not accepted
  Lobivia lauramarca Rauh & Backeb. -- not accepted
  Lobivia leucorhodon Backeb. -- not accepted
  Lobivia leucoviolacea Backeb. -- not accepted
  Lobivia longispina Britton & Rose -- not accepted
  Lobivia marsoneri (Werderm.) Backeb. -- not accepted
  Lobivia miniatiflora F. Ritter -- not accepted
  Lobivia minuta F. Ritter -- not accepted
  Lobivia mirabunda Backeb. -- not accepted
  Lobivia mistiensis (Werderm. & Backeb.) Backeb. -- not accepted
  Lobivia muhriae Backeb. -- not accepted
  Lobivia multicostata Backeb. -- not accepted
  Lobivia nealeana Backeb. -- not accepted
  Lobivia neohaageana Backeb. -- not accepted
  Lobivia nigricans Wessner -- not accepted
  Lobivia nigrispina Backeb. -- not accepted
  Lobivia nigrostoma Kreuz. & Buining -- not accepted
  Lobivia oligotricha Cárdenas -- not accepted
  Lobivia orurensis Backeb. -- not accepted
  Lobivia oxyalabastra Cárdenas & Rausch -- not accepted
  Lobivia pachyacantha Y. Itô -- not accepted
  Lobivia pampana Britton & Rose -- not accepted
  Lobivia peclardiana Krainz -- not accepted
  Lobivia peclardiana var. albiflora Krainz -- not accepted
  Lobivia pectinata Backeb. -- not accepted
  Lobivia pentlandii (Hook.) Britton & Rose -- not accepted
  Lobivia planiceps Backeb. -- not accepted
  Lobivia pojoensis Rausch -- not accepted
  Lobivia polaskiana Backeb. -- not accepted
  Lobivia polycephala Backeb. -- not accepted
  Lobivia potosina (Werderm.) Friedrich -- not accepted
  Lobivia prestoana Cárdenas -- not accepted
  Lobivia pseudocachensis Backeb. -- not accepted
  Lobivia pseudocariquinensis Cárdenas -- not accepted
  Lobivia pugionacantha (Rose & Boed.) Backeb. -- not accepted
  Lobivia purpureominiata F. Ritter -- not accepted
  Lobivia pusilla F. Ritter -- not accepted
  Lobivia quiabayensis Rausch -- not accepted
  Lobivia raphidacantha Backeb. -- not accepted
  Lobivia rauschii Zecher -- not accepted
  Lobivia rebutioides Backeb. -- not accepted
  Lobivia ritteri Wessner -- not accepted
  Lobivia rosarioana Rausch -- not accepted
  Lobivia rossii (Boed.) Harden -- not accepted
  Lobivia rubescens Backeb. -- not accepted
  Lobivia salitrensis Rausch -- not accepted
  Lobivia salitrensis var. flexuosa Rausch -- not accepted
  Lobivia saltensis (Speg.) Britton & Rose -- not accepted
  Lobivia sanguiniflora Backeb. -- not accepted
  Lobivia schieliana Backeb. -- not accepted
  Lobivia schneideriana Backeb. -- not accepted
  Lobivia schreiteri A. Cast. -- not accepted
  Lobivia scoparia (Werderm.) Harden -- not accepted
  Lobivia scopulina Backeb. -- not accepted
  Lobivia shaferi Britton & Rose -- not accepted
  Lobivia sicuaniensis Rausch -- not accepted
  Lobivia steinmannii (Solms) Backeb. -- not accepted
  Lobivia stilowiana Backeb. -- not accepted
  Lobivia taratensis Cárdenas -- not accepted
  Lobivia tegeleriana Backeb. -- not accepted
  Lobivia thionantha (Speg.) Britton & Rose -- not accepted
  Lobivia tiegeliana Wessner -- not accepted
  Lobivia titicacensis Cárdenas -- not accepted
  Lobivia tuberculosa F. Ritter -- not accepted
  Lobivia uitewaaleana Buining -- not accepted
  Lobivia varians Backeb. -- not accepted
  Lobivia variispina F. Ritter -- not accepted
  Lobivia versicolor Rausch -- not accepted
  Lobivia vilcabambae F. Ritter -- not accepted
  Lobivia walteri R. Kiesling -- not accepted
  Lobivia walterspielii Boed. -- not accepted
  Lobivia wegheiana Backeb. -- not accepted
  Lobivia westii Hutchison -- not accepted
  Lobivia winteriana F. Ritter -- not accepted
  Lobivia wrightiana Backeb. -- not accepted
  Lobivia wrightiana var. winteriana Backeb. -- not accepted
  Lobivia zencheri Rausch -- not accepted
  Lobivia zudanensis Cárdenas -- not accepted
  Lophocereus (Engelm.) Britton & Rose -- not accepted
  Lophocereus gatesii M.E. Jones -- not accepted
  Lophocereus mieckleyanus (Weing.) Backeb. -- not accepted
  Lophocereus sargentianus (Orcutt) Britton & Rose -- not accepted
  Lophocereus schottii (Engelm.) Britton & Rose -- not accepted -- Senita
  Lophophora J.M. Coult. -- accepted
  Lophophora diffusa (Croizat) Bravo -- accepted
  Lophophora fricii Haberm. -- accepted
  Lophophora williamsii (Lem. ex Salm-Dyck) J.M. Coult. -- accepted -- Peyote, peyote
  Lophophora williamsii var. echinata (Croizat) Bravo -- not accepted
  Loxanthocereus Backeb. -- not accepted
  Loxanthocereus acanthurus (Vaupel) Backeb. -- not accepted
  Loxanthocereus aticensis Rauh & Backeb. -- not accepted
  Loxanthocereus bicolor F. Ritter -- not accepted
  Loxanthocereus brevispinus Rauh & Backeb. -- not accepted
  Loxanthocereus camanaensis Rauh & Backeb. -- not accepted
  Loxanthocereus canetensis Rauh & Backeb. -- not accepted
  Loxanthocereus convergens F. Ritter -- not accepted
  Loxanthocereus cullmannianus Backeb. -- not accepted
  Loxanthocereus deserticola F. Ritter -- not accepted
  Loxanthocereus eremiticus F. Ritter -- not accepted
  Loxanthocereus erigens Rauh & Backeb. -- not accepted
  Loxanthocereus eriotrichus (Werderm. & Backeb.) Backeb. -- not accepted
  Loxanthocereus eulalianus Rauh & Backeb. -- not accepted
  Loxanthocereus faustianus (Backeb.) Backeb. -- not accepted
  Loxanthocereus ferrugineus Rauh & Backeb. -- not accepted
  Loxanthocereus gracilispinus Rauh & Backeb. -- not accepted
  Loxanthocereus granditessellatus Rauh & Backeb. -- not accepted
  Loxanthocereus hoffmannii F. Ritter -- not accepted
  Loxanthocereus hystrix Rauh & Backeb. -- not accepted
  Loxanthocereus jajoianus (Backeb.) Backeb. -- not accepted
  Loxanthocereus keller-badensis Backeb. & Voll -- not accepted
  Loxanthocereus montanus F. Ritter -- not accepted
  Loxanthocereus multifloccosus Rauh & Backeb. -- not accepted
  Loxanthocereus nanus Backeb. -- not accepted
  Loxanthocereus neglectus F. Ritter -- not accepted
  Loxanthocereus neglectus var. chimbotensis F. Ritter -- not accepted
  Loxanthocereus otuscensis F. Ritter -- not accepted
  Loxanthocereus pacaranensis F. Ritter -- not accepted
  Loxanthocereus pachycladus Rauh & Backeb. -- not accepted
  Loxanthocereus parvitesselatus F. Ritter -- not accepted
  Loxanthocereus peculiaris Rauh & Backeb. -- not accepted
  Loxanthocereus piscoensis Rauh & Backeb. -- not accepted
  Loxanthocereus pullatus Rauh & Backeb. -- not accepted
  Loxanthocereus puquiensis F. Ritter -- not accepted
  Loxanthocereus riomajensis Rauh & Backeb. -- not accepted
  Loxanthocereus sextonianus (Backeb.) Backeb. -- not accepted
  Loxanthocereus splendens Backeb. -- not accepted
  Loxanthocereus sulcifer Rauh & Backeb. -- not accepted
  Loxanthocereus trujilloensis F. Ritter -- not accepted
  Loxanthocereus variabilis F. Ritter -- not accepted
  Loxanthocereus xylorhizus F. Ritter -- not accepted
  Loxanthocereus yauyosensis F. Ritter -- not accepted
  Lymanbensonia Kimnach -- not accepted
  Lymanbensonia micrantha (Vaupel) Kimnach -- not accepted
  Machaerocereus Britton & Rose -- not accepted
  Machaerocereus eruca (Brandegee) Britton & Rose -- not accepted
  Machaerocereus gummosus (Engelm.) Britton & Rose -- not accepted
  Maihuenia (Phil. ex F.A.C. Weber) K. Schum. -- accepted
  Maihuenia albolanata F. Ritter -- not accepted
  Maihuenia brachydelphys K. Schum. -- not accepted
  Maihuenia cumulata F. Ritter -- not accepted
  Maihuenia latispina F. Ritter -- not accepted
  Maihuenia patagonica (Phil) Britton & Rose -- accepted
  Maihuenia philippii F.A.C. Weber -- not accepted
  Maihuenia poeppigii (Otto ex Pfeiff.) F.A.C. Weber ex K. Schum. -- accepted
  Maihuenia valentinii Speg. -- not accepted
  Maihueniopsis Speg. -- accepted
  Maihueniopsis albomarginata F. Ritter -- not accepted
  Maihueniopsis archiconoidea F. Ritter -- accepted
  Maihueniopsis atacamensis (Phil.) F. Ritter -- not accepted
  Maihueniopsis boliviana (Salm-Dyck) R. Kiesling -- not accepted
  Maihueniopsis bonnieae (D.J. Ferguson & R. Kiesling) E.F. Anderson -- not accepted
  Maihueniopsis camachoi (Espinosa) F. Ritter -- not accepted
  Maihueniopsis clavarioides (Otto ex Pfeiff.) E.F. Anderson -- accepted
  Maihueniopsis colorea (F. Ritter) F. Ritter -- not accepted
  Maihueniopsis conoidea (F. Ritter ex Backeb.) F. Ritter -- accepted
  Maihueniopsis crassispina F. Ritter -- not accepted
  Maihueniopsis darwinii (Hensl.) F. Ritter -- accepted
  Maihueniopsis domeykoensis F. Ritter -- not accepted
  Maihueniopsis glomerata (Haw.) R. Kiesling -- accepted
  Maihueniopsis grandiflora F. Ritter -- not accepted
  Maihueniopsis hypogaea (Werderm.) F. Ritter -- accepted
  Maihueniopsis leoncito (Werderm.) F. Ritter -- not accepted
  Maihueniopsis leptoclada F. Ritter -- not accepted
  Maihueniopsis mandragora (Backeb.) F. Ritter -- not accepted
  Maihueniopsis minuta (Backeb.) R. Kiesling -- accepted
  Maihueniopsis molfinoi Speg. -- not accepted
  Maihueniopsis molinensis (Speg.) F. Ritter -- not accepted
  Maihueniopsis neuquensis (Borg) F. Ritter -- not accepted
  Maihueniopsis nigrispina (K. Schum.) R. Kiesling -- not accepted
  Maihueniopsis ovallei (J. Rémy) F. Ritter -- not accepted
  Maihueniopsis ovata (Pfeiff.) F. Ritter -- not accepted
  Maihueniopsis pentlandii (Salm-Dyck) R. Kiesling -- not accepted
  Maihueniopsis rahmeri (Phil.) F. Ritter -- not accepted
  Maihueniopsis subterranea (R.E. Fr.) E.F. Anderson -- accepted
  Maihueniopsis tarapacana (Phil.) F. Ritter -- not accepted
  Malacocarpus Salm-Dyck -- not accepted
  Malacocarpus heptacanthus Barb. Rodr. -- not accepted
  Mamillopsis (E. Morren) F.A.C. Weber ex Britton & Rose -- not accepted
  Mamillopsis diguetii (F.A.C. Weber) Britton & Rose -- not accepted
  Mamillopsis senilis (Lodd. ex Salm-Dyck) F.A.C. Weber ex Britton & Rose -- not accepted
  Mammillaria Haw. -- accepted -- fishhook cactus, globe cactus, pincushion cactus
  Mammillaria aggregata Engelm. -- not accepted
  Mammillaria alamensis R.T. Craig -- not accepted
  Mammillaria albata Repp. -- not accepted
  Mammillaria albescens Tiegel -- not accepted
  Mammillaria albiarmata Boed. -- not accepted
  Mammillaria albicans (Britton & Rose) A. Berger -- accepted
  Mammillaria albicans ssp. albicans (Britton & Rose) A. Berger -- accepted
  Mammillaria albicans ssp. fraileana (Britton & Rose) D.R. Hunt -- accepted
  Mammillaria albicolumnaria (Hester) D. Weniger -- not accepted
  Mammillaria albicoma Boed. -- accepted
  Mammillaria albidula Backeb. -- not accepted
  Mammillaria albiflora Backeb. -- accepted
  Mammillaria albilanata Backeb. -- accepted
  Mammillaria albilanata ssp. albilanata Backeb. -- accepted
  Mammillaria albilanata ssp. oaxacana D.R. Hunt -- accepted
  Mammillaria albilanata ssp. reppenhagenii (D.R. Hunt) D.R. Hunt -- accepted
  Mammillaria albilanata ssp. tegelbergiana (G.E. Linds.) D.R. Hunt -- accepted
  Mammillaria albrechtiana Wohlschl. -- not accepted
  Mammillaria alversonii (J.M. Coult.) J.M. Coult. ex Zeiss. -- not accepted
  Mammillaria amajacensis Brachet & M. Lacoste -- not accepted
  Mammillaria angelensis R.T. Craig -- not accepted
  Mammillaria anniana Glass & R.A. Foster -- accepted
  Mammillaria antesbergeriana A.B. Lau -- not accepted
  Mammillaria apamensis Repp. -- not accepted
  Mammillaria apozolensis Repp. -- not accepted
  Mammillaria applanata Engelm. -- not accepted
  Mammillaria arida Rose -- not accepted
  Mammillaria armatissima R.T. Craig -- not accepted
  Mammillaria armillata K. Brandegee -- accepted
  Mammillaria arroyensis Repp. -- not accepted
  Mammillaria ascensionis Repp. -- not accepted
  Mammillaria atroflorens Backeb. -- not accepted
  Mammillaria aureilanata Backeb. -- accepted
  Mammillaria aureispina (A.B. Lau) Repp. -- not accepted
  Mammillaria aureoviridis Heinrich -- not accepted
  Mammillaria auriareolis Tiegel -- not accepted
  Mammillaria auricantha R.T. Craig -- not accepted
  Mammillaria aurihamata Boed. -- not accepted
  Mammillaria aurisaeta Backeb. -- not accepted
  Mammillaria auritricha R.T. Craig -- not accepted
  Mammillaria avila-camachoi Shurly ex Backeb. -- not accepted
  Mammillaria backebergiana Buchenau -- accepted
  Mammillaria backebergiana ssp. backebergiana Buchenau -- accepted
  Mammillaria backebergiana ssp. ernestii (Fittkau) D.R. Hunt -- accepted
  Mammillaria balsasoides R.T. Craig -- not accepted
  Mammillaria bambusiphila Repp. -- not accepted
  Mammillaria barbata Engelm. -- accepted
  Mammillaria barkeri Shurly ex Backeb. -- not accepted
  Mammillaria baumii Boed. -- accepted
  Mammillaria baxteriana (H.E. Gates) Boed. -- not accepted
  Mammillaria beiselii Diers -- not accepted
  Mammillaria bella Backeb. -- not accepted -- Biznaga bella
  Mammillaria bellacantha R.T. Craig -- not accepted
  Mammillaria bellisiana R.T. Craig -- not accepted
  Mammillaria beneckei Ehrenb. -- accepted
  Mammillaria berkiana A.B. Lau -- accepted
  Mammillaria bernalensis Repp. -- not accepted
  Mammillaria blossfeldiana Boed. -- accepted
  Mammillaria bocasana Poselg. -- accepted
  Mammillaria bocasana ssp. eschauzieri (J.M. Coult.) W.A. Fitz Maur. & B. Fitz Maur. -- not accepted
  Mammillaria bocensis R.T. Craig -- accepted
  Mammillaria boelderliana Wohlschl. -- accepted
  Mammillaria bombycina Quehl -- accepted
  Mammillaria bombycina ssp. bombycina Quehl -- accepted
  Mammillaria bombycina ssp. perezdelarosae (Bravo & Scheinvar) D.R. Hunt -- accepted
  Mammillaria bonavitii Repp. -- not accepted
  Mammillaria boolii G.E. Linds. -- accepted
  Mammillaria brachytrichion Lüthy -- not accepted
  Mammillaria brandegeei (J.M. Coult.) Engelm. ex K. Brandegee -- accepted
  Mammillaria brandegeei ssp. brandegeei (J.M. Coult.) Engelm. ex K. Brandegee -- accepted
  Mammillaria brandegeei ssp. gabbii (J.M. Coult.) D.R. Hunt -- accepted
  Mammillaria brandegeei ssp. glareosa (Boed.) D.R. Hunt -- accepted
  Mammillaria brauneana Boed. -- not accepted
  Mammillaria bravoae R.T. Craig -- not accepted
  Mammillaria brevicrinita Repp. -- not accepted
  Mammillaria bucareliensis R.T. Craig -- not accepted
  Mammillaria buchenaui Backeb. -- not accepted
  Mammillaria bullardiana (H.E. Gates) Boed. -- not accepted
  Mammillaria buxbaumeriana Repp. -- not accepted
  Mammillaria cadereytensis R.T. Craig -- not accepted
  Mammillaria caerulea R.T. Craig -- not accepted
  Mammillaria calacantha Tiegel -- not accepted
  Mammillaria calleana Backeb. -- not accepted
  Mammillaria camptotricha Dams -- not accepted
  Mammillaria candida Scheidw. -- accepted
  Mammillaria canelensis R.T. Craig -- not accepted
  Mammillaria capensis (H.E. Gates) R.T. Craig -- accepted
  Mammillaria carmenae Castañeda -- accepted
  Mammillaria carnea Zucc. ex Pfeiff. -- accepted
  Mammillaria carretii Rebut ex K. Schum. -- accepted
  Mammillaria casoi Bravo -- not accepted
  Mammillaria centralifera Repp. -- not accepted
  Mammillaria centraliplumosa Fittkau -- not accepted
  Mammillaria cerralboa (Britton & Rose) Orcutt -- accepted
  Mammillaria chapinensis Eichlam & Quehl -- not accepted
  Mammillaria chiapensis Repp. -- not accepted
  Mammillaria chica Repp. -- not accepted
  Mammillaria chionocephala J.A. Purpus -- not accepted
  Mammillaria clavata Scheidw. -- not accepted
  Mammillaria claviformis Repp. -- not accepted
  Mammillaria coahuilensis (Boed.) Moran -- accepted
  Mammillaria collina J.A. Purpus -- not accepted
  Mammillaria collinsii (Britton & Rose) Orcutt -- not accepted
  Mammillaria colonensis R.T. Craig -- not accepted
  Mammillaria columbiana Salm-Dyck -- accepted
  Mammillaria columbiana ssp. columbiana Salm-Dyck -- accepted
  Mammillaria columbiana ssp. yucatanensis (Britton & Rose) D.R. Hunt -- accepted
  Mammillaria compacta Engelm. -- not accepted
  Mammillaria compacticaulis Repp. -- not accepted
  Mammillaria compressa DC. -- accepted
  Mammillaria compressa ssp. centralifera (Repp.) D.R. Hunt -- accepted
  Mammillaria compressa ssp. compressa DC. -- accepted
  Mammillaria confusa (Britton & Rose) Orcutt -- not accepted
  Mammillaria conoidea DC. -- not accepted
  Mammillaria conspicua J.A. Purpus -- not accepted
  Mammillaria cowperae Shurly -- not accepted
  Mammillaria craigii G.E. Linds. -- not accepted
  Mammillaria crassa Repp. -- not accepted
  Mammillaria crassimammillis Repp. -- not accepted
  Mammillaria crassior Repp. -- not accepted
  Mammillaria crinita DC. -- accepted
  Mammillaria crinita ssp. crinita DC. -- accepted
  Mammillaria crinita ssp. leucantha (Boed.) D.R. Hunt -- accepted
  Mammillaria crinita ssp. wildii (A. Dietr.) D.R. Hunt -- accepted
  Mammillaria crucigera Mart. -- accepted
  Mammillaria crucigera ssp. crucigera Mart. -- accepted
  Mammillaria crucigera ssp. tlalocii (Repp.) D.R. Hunt -- accepted
  Mammillaria dasyacantha Engelm. -- not accepted
  Mammillaria dawsonii (Houghton) R.T. Craig -- not accepted
  Mammillaria decipiens Scheidw. -- accepted
  Mammillaria decipiens ssp. albescens (Tiegel) D.R. Hunt -- accepted
  Mammillaria decipiens ssp. decipiens Scheidw. -- accepted
  Mammillaria decipiens var. camptotricha (Dams) D.R. Hunt -- not accepted
  Mammillaria deherdtiana Farwig -- accepted
  Mammillaria deherdtiana ssp. deherdtiana Farwig -- accepted
  Mammillaria deherdtiana ssp. dodsonii (Bravo) D.R. Hunt -- accepted
  Mammillaria delaetiana Quehl -- not accepted
  Mammillaria densispina (J.M. Coult.) Orcutt -- accepted
  Mammillaria difficilis Quehl -- not accepted
  Mammillaria diguetii (F.A.C. Weber) H.P. Kelsey & Dayton -- not accepted
  Mammillaria dioica K. Brandegee -- accepted -- Biznaga llavina, strawberry cactus
  Mammillaria dioica ssp. angelensis (R.T. Craig) R.T. Craig -- accepted
  Mammillaria dioica ssp. dioica K. Brandegee -- accepted
  Mammillaria dioica ssp. estebanensis (G.E. Linds.) D.R. Hunt -- accepted
  Mammillaria dioica var. incerta (Parish) Munz -- not accepted
  Mammillaria discolor Haw. -- accepted
  Mammillaria dixanthocentron Backeb. ex Mottram -- accepted
  Mammillaria dodsonii Bravo -- not accepted
  Mammillaria donatii Berge ex K. Schum. -- not accepted
  Mammillaria droegeana (K. Schum.) Borg -- not accepted
  Mammillaria droegeana Hildm. ex Schelle -- not accepted
  Mammillaria dumetorum J.A. Purpus -- not accepted
  Mammillaria duncanii (Hester) D. Weniger -- not accepted
  Mammillaria duoformis R.T. Craig & E.Y. Dawson -- accepted
  Mammillaria durangensis Runge ex K. Schum. -- not accepted
  Mammillaria durangicola Repp. -- not accepted
  Mammillaria durispina Boed. -- not accepted
  Mammillaria duwei Rogoz. & P.J. Braun -- accepted
  Mammillaria ebenacantha Shurly -- not accepted
  Mammillaria echinoidea Quehl -- not accepted
  Mammillaria echinus Engelm. -- not accepted
  Mammillaria egregia Backeb. -- not accepted
  Mammillaria eichlamii Quehl -- accepted
  Mammillaria ekmanii Werderm. -- accepted
  Mammillaria elegans DC. -- not accepted
  Mammillaria elephantidens var. bumamma (Ehrenb.) K. Schum. -- not accepted
  Mammillaria elongata DC. -- accepted
  Mammillaria elongata ssp. echinaria (DC.) D.R. Hunt -- accepted
  Mammillaria elongata ssp. elongata DC. -- accepted
  Mammillaria emskoetteriana Quehl -- not accepted
  Mammillaria erectohamata Boed. -- not accepted
  Mammillaria eriacantha Link & Otto ex Pfeiff. -- accepted
  Mammillaria ernestii Fittkau -- not accepted
  Mammillaria erythra Repp. -- not accepted
  Mammillaria erythrocalix Buchenau -- not accepted
  Mammillaria erythrosperma Boed. -- accepted
  Mammillaria esseriana Boed. -- not accepted
  Mammillaria estanzuelensis A. Berger -- not accepted
  Mammillaria estebanensis G.E. Linds. -- not accepted
  Mammillaria evermanniana (Britton & Rose) Orcutt -- accepted
  Mammillaria fasciculata Engelm. ex B.D. Jacks. -- not accepted
  Mammillaria fasciculata Engelm. -- not accepted
  Mammillaria felipensis Repp. -- not accepted
  Mammillaria fera-rubra F. Schmoll ex R.T. Craig -- not accepted
  Mammillaria fissurata Engelm. -- not accepted
  Mammillaria fittkaui Glass & R.A. Foster -- accepted
  Mammillaria fittkaui ssp. fittkaui Glass & R.A. Foster -- accepted
  Mammillaria fittkaui ssp. limonensis (Repp.) Lüthy -- accepted
  Mammillaria flavicentra Backeb. ex Mottram -- accepted
  Mammillaria flavihamata Backeb. -- not accepted
  Mammillaria formosa Scheidw. -- accepted
  Mammillaria formosa ssp. chionocephala (J.A. Purpus) D.R. Hunt -- accepted
  Mammillaria formosa ssp. formosa Scheidw. -- accepted
  Mammillaria formosa ssp. microthele (Muehlenpf.) D.R. Hunt -- accepted
  Mammillaria formosa ssp. pseudocrucigera (R.T. Craig) D.R. Hunt -- accepted
  Mammillaria fraileana (Britton & Rose) Backeb. -- not accepted
  Mammillaria freudenbergii Repp. -- not accepted
  Mammillaria fuauxiana Backeb. -- not accepted
  Mammillaria gabbii (J.M. Coult.) Engelm. ex K. Brandegee -- not accepted
  Mammillaria garessii Cowper -- not accepted
  Mammillaria gasseriana Boed. -- accepted
  Mammillaria gasterantha Repp. -- not accepted
  Mammillaria gatesii M.E. Jones -- not accepted
  Mammillaria gaumeri Orcutt -- not accepted
  Mammillaria geminispina Haw. -- accepted
  Mammillaria geminispina ssp. geminispina Haw. -- accepted
  Mammillaria geminispina ssp. leucocentra (A. Berg) D.R. Hunt -- accepted
  Mammillaria gigantea Hildm. ex K. Schum. -- accepted
  Mammillaria gilensis Boed. -- not accepted
  Mammillaria giselae Mart.-Aval. & Glass -- not accepted
  Mammillaria glanduligera Otto & A. Dietr. -- not accepted
  Mammillaria glassii R.A. Foster -- accepted
  Mammillaria glassii var. ascensionis (Repp.) Glass & R.A. Foster -- not accepted
  Mammillaria glochidiata Mart. -- accepted
  Mammillaria glomerata DC. -- not accepted
  Mammillaria goldii Glass & R.A. Foster -- not accepted
  Mammillaria gracilis Pfeiff. -- not accepted
  Mammillaria grahamii Engelm. -- accepted -- Graham's nipple cactus, Graham's pincushion cactus
  Mammillaria grahamii ssp. grahamii Engelm. -- accepted
  Mammillaria grahamii ssp. sheldonii (Britton & Rose) D.R. Hunt -- accepted
  Mammillaria grusonii Runge -- accepted
  Mammillaria gueldemanniana Backeb. -- not accepted
  Mammillaria guelzowiana Werderm. -- accepted
  Mammillaria guerreronis (Bravo) Boed. -- accepted
  Mammillaria guiengolensis Bravo & T. MacDoug. -- not accepted
  Mammillaria guillauminiana Backeb. -- accepted
  Mammillaria guirocobensis R.T. Craig -- not accepted
  Mammillaria gummifera Engelm. -- not accepted -- Biznaga lechosa
  Mammillaria gummifera var. applanata (Engelm.) L.D. Benson -- not accepted
  Mammillaria gummifera var. hemisphaerica (Engelm.) L.D. Benson -- not accepted
  Mammillaria gummifera var. macdougalii (Rose) L.D. Benson -- not accepted
  Mammillaria gummifera var. meiacantha (Engelm.) L.D. Benson -- not accepted
  Mammillaria haageana Pfeiff. -- accepted
  Mammillaria haageana var. schmollii (R.T. Craig) D.R. Hunt -- not accepted
  Mammillaria haasii J. Meyrán -- not accepted
  Mammillaria hahniana Werderm. -- accepted
  Mammillaria halbingeri Boed. -- accepted
  Mammillaria halei Brandegee -- accepted
  Mammillaria hamiltonhoytiae (Bravo) Werderm. -- not accepted
  Mammillaria hamuligera Quehl -- not accepted
  Mammillaria heidiae Krainz -- not accepted
  Mammillaria hemisphaerica Engelm. -- not accepted
  Mammillaria hennisii Boed. -- not accepted
  Mammillaria hernandezii Glass & R.A. Foster -- accepted
  Mammillaria herrerae Werderm. -- accepted
  Mammillaria hertrichiana R.T. Craig -- not accepted
  Mammillaria hesteri (Y. Wright) D. Weniger -- not accepted
  Mammillaria heyderi Muehlenpf. -- accepted -- Biznaga china, Heyder's pincushion cactus, little nipple cactus
  Mammillaria heyderi ssp. coahuilensis (Boed.) Lüthy -- not accepted
  Mammillaria heyderi ssp. gaumeri (Orcutt) D.R. Hunt -- accepted
  Mammillaria heyderi ssp. hemisphaerica (Engelm.) D.R. Hunt -- accepted
  Mammillaria heyderi ssp. heyderi Muehlenpf. -- accepted
  Mammillaria heyderi ssp. macdougalii (Rose) D.R. Hunt -- accepted
  Mammillaria heyderi var. applanata (Engelm.) Engelm. -- not accepted
  Mammillaria heyderi var. gummifera (Engelm.) L.D. Benson -- not accepted
  Mammillaria hidalgensis J.A. Purpus -- not accepted
  Mammillaria hirsuta Boed. -- not accepted
  Mammillaria hoffmannseggii Hoffmanns. -- not accepted
  Mammillaria huajuapensis Bravo -- not accepted
  Mammillaria hubertmulleri Repp. -- not accepted
  Mammillaria huiguerensis Repp. -- not accepted
  Mammillaria huitzilopochtli D.R. Hunt -- accepted
  Mammillaria huitzilopochtli ssp. huitzilopochtli D.R. Hunt -- accepted
  Mammillaria huitzilopochtli ssp. niduliformis (A.B. Lau) Pilbeam -- accepted
  Mammillaria humboldtii Ehrenb. -- accepted
  Mammillaria hutchisoniana (H.E. Gates) Boed. -- accepted
  Mammillaria hutchisoniana ssp. hutchisoniana (H.E. Gates) Boed. -- accepted
  Mammillaria hutchisoniana ssp. louisae (G.E. Linds.) D.R. Hunt -- accepted
  Mammillaria ignota Repp. -- not accepted
  Mammillaria igualensis Repp. -- not accepted
  Mammillaria inaiae R.T. Craig -- not accepted
  Mammillaria infernillensis R.T. Craig -- not accepted
  Mammillaria ingens Backeb. -- not accepted
  Mammillaria insularis H.E. Gates -- accepted
  Mammillaria isotensis Repp. -- not accepted
  Mammillaria jaliscana (Britton & Rose) Boed. -- accepted
  Mammillaria jaliscana ssp. jaliscana (Britton & Rose) Boed. -- accepted
  Mammillaria jaliscana ssp. zacatecasensis (Shurly) D.R. Hunt -- accepted
  Mammillaria jamaicensis Areces -- not accepted
  Mammillaria johnstonii Orcutt -- accepted
  Mammillaria karwinskiana Mart. -- accepted
  Mammillaria karwinskiana ssp. beiselii (Diers) D.R. Hunt -- accepted
  Mammillaria karwinskiana ssp. collinsii (Orcutt) D.R. Hunt -- accepted
  Mammillaria karwinskiana ssp. karwinskiana Mart. -- accepted
  Mammillaria karwinskiana ssp. nejapensis (R.T. Craig & E.Y. Dawson) D.R. Hunt -- accepted
  Mammillaria kelleriana F. Schmoll ex R.T. Craig -- not accepted
  Mammillaria klissingiana Boed. -- accepted
  Mammillaria knebeliana Boed. -- not accepted
  Mammillaria knippeliana Quehl -- accepted
  Mammillaria kraehenbuehlii (Krainz) Krainz -- accepted
  Mammillaria krassuckae Repp. -- not accepted
  Mammillaria kuentziana P. Fearn & B. Fearn -- not accepted
  Mammillaria kunzeana Boed. & Quehl -- not accepted
  Mammillaria lanata (Britton & Rose) Orcutt -- not accepted
  Mammillaria lanigera Repp. -- not accepted
  Mammillaria lasiacantha Engelm. -- accepted -- Biznaga de espinas pubescentes, lacespine nipple cactus, small pincushion cactus
  Mammillaria lasiacantha var. denudata Engelm. -- not accepted
  Mammillaria laui D.R. Hunt -- accepted
  Mammillaria laui ssp. dasyacantha (D.R. Hunt) D.R. Hunt -- accepted
  Mammillaria laui ssp. laui D.R. Hunt -- accepted
  Mammillaria laui ssp. subducta (D.R. Hunt) D.R. Hunt -- accepted
  Mammillaria leei (Rose ex Boed.) D. Weniger -- not accepted
  Mammillaria lengdobleriana Boed. -- not accepted
  Mammillaria leptacantha (A.B. Lau) Repp. -- not accepted
  Mammillaria leucantha Boed. -- not accepted
  Mammillaria leucocentra A. Berg -- not accepted
  Mammillaria lewisiana H.E. Gates -- not accepted
  Mammillaria limonensis Repp. -- not accepted
  Mammillaria linaresensis R. Wolf & F. Wolf -- accepted
  Mammillaria lindsayi R.T. Craig -- not accepted
  Mammillaria longicoma (Britton & Rose) A. Berger -- not accepted
  Mammillaria longiflora (Britton & Rose) A. Berger -- accepted
  Mammillaria longiflora ssp. longiflora (Britton & Rose) A. Berger -- accepted
  Mammillaria longiflora ssp. tepexicensis (J. Meyrán) Lüthy -- accepted
  Mammillaria longimamma DC. -- accepted
  Mammillaria longimamma var. sphaerica (A. Dietr.) K. Brandegee -- not accepted
  Mammillaria longimanna DC. -- not accepted
  Mammillaria louisae G.E. Linds. -- not accepted
  Mammillaria louiseae G.E. Linds. -- not accepted
  Mammillaria luethyi G.S. Hinton -- accepted
  Mammillaria macdougalii Rose -- not accepted
  Mammillaria machucae W.A. Fitz Maur. & B. Fitz Maur. -- not accepted
  Mammillaria macromeris Engelm. -- not accepted
  Mammillaria magallanii F. Schmoll ex R.T. Craig -- not accepted
  Mammillaria magneticola J. Meyrán -- not accepted
  Mammillaria magnifica Buchenau -- accepted
  Mammillaria magnimamma Haw. -- accepted
  Mammillaria mainiae K. Brandegee -- accepted -- Biznaga de Nogales, counterclockwise nipple cactus, Maine pincushion cactus
  Mammillaria mammillaris (L.) H. Karst. -- accepted
  Mammillaria manana W.A. Fitz Maur. & B. Fitz Maur. -- not accepted
  Mammillaria marcosii W.A. Fitz Maur. & B. Fitz Maur. -- accepted
  Mammillaria marksiana Krainz -- accepted
  Mammillaria marnieriana Backeb. -- not accepted
  Mammillaria marshalliana (H.E. Gates) Boed. -- not accepted
  Mammillaria martinezii Backeb. -- not accepted
  Mammillaria mathildae Kraehenb. & Krainz -- accepted
  Mammillaria matudae Bravo -- accepted
  Mammillaria mayensis R.T. Craig -- not accepted
  Mammillaria mazatlanensis K. Schum. ex Gürke -- accepted
  Mammillaria meiacantha Engelm. -- accepted -- Biznaga de pocas espinas
  Mammillaria meissneri C. Ehrenb. -- not accepted
  Mammillaria melaleuca Karw. ex Salm-Dyck -- accepted
  Mammillaria melanocentra Poselg. -- accepted
  Mammillaria melanocentra ssp. melanocentra Poselg. -- accepted
  Mammillaria melanocentra ssp. rubrograndis (Repp. & A.B. Lau) D.R. Hunt -- accepted
  Mammillaria mendeliana (Bravo) Werderm. -- not accepted
  Mammillaria mercadensis (Britton & Rose) Patoni -- accepted
  Mammillaria meridiorosei Castetter, P. Pierce & K.H. Schwer. -- not accepted
  Mammillaria meyranii Bravo -- accepted
  Mammillaria microcarpa Engelm. -- not accepted
  Mammillaria microcarpa ssp. grahamii (Engelm.) Mottram -- not accepted
  Mammillaria microcarpa var. auricarpa W.T. Marshall -- not accepted
  Mammillaria microcarpa var. milleri (Britton & Rose) W.T. Marshall -- not accepted
  Mammillaria microhelia Werderm. -- accepted
  Mammillaria microheliopsis Werderm. -- not accepted
  Mammillaria micromeris Engelm. -- not accepted
  Mammillaria micromeris var. greggii Engelm. -- not accepted
  Mammillaria micromeris var. unguispina Boed. -- not accepted
  Mammillaria miegiana W.H. Earle -- not accepted
  Mammillaria milleri (Britton & Rose) Boed. -- not accepted -- Biznaga de Miller
  Mammillaria milleri var. grahamii (Engelm.) Neutel. -- not accepted
  Mammillaria milleri var. sheldonii (Britton & Rose) Neutel. -- not accepted
  Mammillaria missouriensis Sweet -- not accepted
  Mammillaria mitlensis Bravo -- not accepted
  Mammillaria mixtecensis Bravo -- not accepted
  Mammillaria moeller-valdeziana Appenz. -- not accepted
  Mammillaria moelleriana Boed. -- accepted
  Mammillaria mollendorffiana Shurly -- not accepted
  Mammillaria mollihamata Shurly -- not accepted
  Mammillaria monancistracantha Backeb. -- not accepted
  Mammillaria monancistria O. Berg. ex K. Schum. -- not accepted
  Mammillaria montensis R.T. Craig -- not accepted
  Mammillaria monticola Repp. -- not accepted
  Mammillaria morganiana Tiegel -- accepted
  Mammillaria morricalii Cowper -- not accepted
  Mammillaria movensis R.T. Craig -- not accepted
  Mammillaria muehlenpfordtii C.F. Först. -- accepted
  Mammillaria multiceps Salm-Dyck -- not accepted -- Biznaga de muchas cabezas
  Mammillaria multidigitata Radley ex G.E. Linds. -- accepted
  Mammillaria multiformis (Britton & Rose) Backeb. -- not accepted
  Mammillaria multihamata Boed. -- not accepted
  Mammillaria mystax Mart. -- accepted
  Mammillaria nagliana Repp. -- not accepted
  Mammillaria nana Backeb. ex Mottram -- accepted
  Mammillaria napina J.A. Purpus -- accepted
  Mammillaria nazasensis (Glass & R.A. Foster) Repp. -- not accepted
  Mammillaria nejapensis R.T. Craig & E.Y. Dawson -- not accepted
  Mammillaria nellieae (Croizat) Croizat -- not accepted
  Mammillaria neobertrandiana Backeb. -- not accepted
  Mammillaria neocrucigera Backeb. -- not accepted
  Mammillaria neomystax Backeb. -- not accepted
  Mammillaria neopalmeri R.T. Craig -- accepted
  Mammillaria neophaeacantha Fritz Schwarz ex Backeb. -- not accepted
  Mammillaria neopotosina R.T. Craig -- not accepted
  Mammillaria neoschwarzeana Backeb. -- not accepted
  Mammillaria nickelsae K. Brandegee -- not accepted
  Mammillaria nickelsiae K. Brandegee -- not accepted
  Mammillaria nivosa Link ex Pfeiff. -- accepted -- woolly nipple cactus
  Mammillaria nunezii (Britton & Rose) Orcutt -- accepted
  Mammillaria nunezii ssp. bella (Backeb.) D.R. Hunt -- accepted
  Mammillaria nunezii ssp. nunezii (Britton & Rose) Orcutt -- accepted
  Mammillaria obscura Hildm. -- not accepted
  Mammillaria occidentalis (Britton & Rose) Boed. -- not accepted
  Mammillaria ochoterenae (Bravo) Werderm. -- not accepted
  Mammillaria ocotillensis R.T. Craig -- not accepted
  Mammillaria octacantha DC. -- not accepted
  Mammillaria oliviae Orcutt -- not accepted -- Biznaga chollo chico
  Mammillaria orcuttii Boed. -- accepted
  Mammillaria orestera L.D. Benson -- not accepted
  Mammillaria ortiz-rubiona (Bravo) Werderm. -- not accepted
  Mammillaria oteroi Glass & R.A. Foster -- accepted
  Mammillaria pachycylindrica Backeb. -- not accepted
  Mammillaria pachyrhiza Backeb. -- not accepted
  Mammillaria pacifica (H.E. Gates) Boed. -- not accepted
  Mammillaria painteri Rose ex Quehl -- accepted
  Mammillaria papasquiarensis (Bravo) Repp. -- not accepted
  Mammillaria papyracantha Engelm. -- not accepted
  Mammillaria parensis R.T. Craig -- not accepted
  Mammillaria parkinsonii Ehrenb. -- accepted
  Mammillaria parrasensis Repp. -- not accepted
  Mammillaria patonii (Bravo) Werderm. -- not accepted
  Mammillaria pectinifera F.A.C. Weber -- accepted
  Mammillaria pectinifera ssp. pectinifera F.A.C. Weber -- accepted
  Mammillaria pectinifera ssp. solisioides (Backeb.) D.R. Hunt -- accepted
  Mammillaria peninsularis (Britton & Rose) Orcutt -- accepted
  Mammillaria pennispinosa Krainz -- accepted
  Mammillaria pennispinosa ssp. nazasensis (Glass & R.A. Foster ) D.R. Hunt -- accepted
  Mammillaria pennispinosa ssp. pennispinosa Krainz -- accepted
  Mammillaria perbella Hildm. ex K. Schum. -- accepted
  Mammillaria perezdelarosae Bravo & Scheinvar -- not accepted
  Mammillaria petrophila K. Brandegee -- accepted
  Mammillaria petrophila ssp. arida (Rose) D.R. Hunt -- accepted
  Mammillaria petrophila ssp. baxteriana (H.E. Gates) D.R. Hunt -- accepted
  Mammillaria petrophila ssp. petrophila K. Brandegee -- accepted
  Mammillaria petterssonii Hildm. -- accepted
  Mammillaria phitauiana (E.M. Baxter) Werderm. -- accepted
  Mammillaria picta Meinsh. -- accepted
  Mammillaria pilispina J.A. Purpus -- accepted
  Mammillaria pitcayensis Bravo -- not accepted
  Mammillaria plumosa F.A.C. Weber -- accepted
  Mammillaria polyedra Mart. -- accepted
  Mammillaria polythele Mart. -- accepted
  Mammillaria polythele ssp. obconella (Scheidw.) D.R. Hunt -- accepted
  Mammillaria polythele ssp. polythele Mart. -- accepted
  Mammillaria pondii Greene -- accepted
  Mammillaria pondii ssp. maritima (G.E. Linds.) D.R. Hunt -- accepted
  Mammillaria pondii ssp. pondii Greene -- accepted
  Mammillaria pondii ssp. setispina (J.M. Coult.) D.R. Hunt -- accepted
  Mammillaria poselgeri Hildm. -- accepted
  Mammillaria posseltiana Boed. -- not accepted
  Mammillaria potosiana Jacobi -- not accepted
  Mammillaria pottsii Scheer ex Salm-Dyck -- accepted -- Biznaga de Potts, rattail nipple cactus
  Mammillaria priessnitzii Repp. -- not accepted
  Mammillaria pringlei (J.M. Coult.) K. Brandegee -- accepted
  Mammillaria prolifera (Mill.) Haw. -- accepted -- Biznaga prolifera, Texas nipple cactus
  Mammillaria prolifera ssp. arachnoidea (D.R. Hunt) D.R. Hunt -- accepted
  Mammillaria prolifera ssp. haitiensis (K. Schum.) D.R. Hunt -- not accepted
  Mammillaria prolifera ssp. prolifera (Mill.) Haw. -- accepted
  Mammillaria prolifera ssp. texana (Engelm.) D.R. Hunt -- accepted
  Mammillaria pseudocrucigera R.T. Craig -- not accepted
  Mammillaria pseudorekoi (Rose) Boed. -- not accepted
  Mammillaria pseudoscrippsiana Backeb. -- not accepted
  Mammillaria pseudosimplex W. Haage & Backeb. -- not accepted
  Mammillaria puberula Repp. -- not accepted
  Mammillaria pubispina Boed. -- not accepted
  Mammillaria pullihamata Repp. -- not accepted
  Mammillaria pycnacantha Mart. -- not accepted
  Mammillaria pygmaea (Britton & Rose) A. Berger -- not accepted
  Mammillaria queretarica R.T. Craig -- not accepted
  Mammillaria radiaissima G.E. Linds. -- not accepted
  Mammillaria ramillosa (Cutak) D. Weniger -- not accepted
  Mammillaria rayonensis Repp. -- not accepted
  Mammillaria recurvata Engelm. -- not accepted
  Mammillaria rekoi (Britton & Rose) Vaupel -- accepted
  Mammillaria rekoi ssp. aureispina (A.B. Lau) D.R. Hunt -- accepted
  Mammillaria rekoi ssp. leptacantha (A.B. Lau) D.R. Hunt -- accepted
  Mammillaria rekoi ssp. rekoi (Britton & Rose) Vaupel -- accepted
  Mammillaria rekoiana R.T. Craig -- not accepted
  Mammillaria reppenhagenii D.R. Hunt -- not accepted
  Mammillaria rettigiana Boed. -- accepted
  Mammillaria rhodantha Link & Otto -- accepted
  Mammillaria rhodantha ssp. fera-rubra (F. Schmoll ex R.T. Craig) D.R. Hunt -- accepted
  Mammillaria rhodantha ssp. mccartenii D.R. Hunt -- accepted
  Mammillaria rhodantha ssp. mollendorffiana (Shurly) D.R. Hunt -- accepted
  Mammillaria rhodantha ssp. rhodantha Link & Otto -- accepted
  Mammillaria rhodantha var. auriceps (Lem.) Salm-Dyck -- not accepted
  Mammillaria ritteriana Boed. -- not accepted
  Mammillaria robertii (A. Berger) D. Weniger -- not accepted
  Mammillaria robustispina A. Schott ex Engelm. -- not accepted
  Mammillaria roseiflora (Lahman) D. Weniger -- not accepted
  Mammillaria rosensis R.T. Craig -- not accepted
  Mammillaria roseoalba Boed. -- accepted
  Mammillaria rossiana Heinrich -- not accepted
  Mammillaria rubida Fritz Schwarz ex Backeb. -- not accepted
  Mammillaria rubrograndis Repp. & A.B. Lau -- not accepted
  Mammillaria ruestii Quehl -- not accepted
  Mammillaria runyonii (Britton & Rose) Cory -- not accepted
  Mammillaria saboae Glass -- accepted
  Mammillaria saboae ssp. goldii (Glass & R.A. Foster) D.R. Hunt -- accepted
  Mammillaria saboae ssp. haudeana (A.B. Lau & K. Wagner) D.R. Hunt -- accepted
  Mammillaria saboae ssp. saboae Glass -- accepted
  Mammillaria saint-pieana Backeb. -- not accepted
  Mammillaria sanangelensis Sánchez-Mej. -- not accepted
  Mammillaria sanchez-mejoradae Rodr. González -- accepted
  Mammillaria sanjuanensis Repp. -- not accepted
  Mammillaria sanluisensis Shurly -- not accepted
  Mammillaria santaclarensis Cowper -- not accepted
  Mammillaria sartorii J.A. Purpus -- accepted
  Mammillaria saxicola Repp. -- not accepted
  Mammillaria scheeri Muehlenpf. -- not accepted
  Mammillaria schiedeana Ehrenb. -- accepted
  Mammillaria schiedeana ssp. dumetorum (J.A. Purpus) D.R. Hunt -- accepted
  Mammillaria schiedeana ssp. giselae (Mart.-Aval. & Glass) Lüthy -- accepted
  Mammillaria schiedeana ssp. schiedeana Ehrenb. -- accepted
  Mammillaria schieliana H. Schick -- not accepted
  Mammillaria schmollii (Bravo) Werderm. -- not accepted
  Mammillaria schumannii Hildm. -- accepted
  Mammillaria schwarzii Shurly -- accepted
  Mammillaria scrippsiana (Britton & Rose) Orcutt -- accepted
  Mammillaria sempervivi DC. -- accepted
  Mammillaria senilis Lodd. ex Salm-Dyck -- accepted
  Mammillaria setispina Engelm. ex J.M. Coult. -- not accepted
  Mammillaria sheldonii (Britton & Rose) Boed. -- not accepted
  Mammillaria shurliana H.E. Gates -- not accepted
  Mammillaria silvatica Repp. -- not accepted
  Mammillaria similis Engelm. -- not accepted
  Mammillaria similis var. robustior Engelm. -- not accepted
  Mammillaria sinistrohamata Boed. -- accepted
  Mammillaria slevinii (Britton & Rose) Boed. -- not accepted
  Mammillaria sneedi (Britton & Rose) Cory -- not accepted
  Mammillaria sneedii (Britton & Rose) Cory -- not accepted
  Mammillaria solisii (Britton & Rose) Boed. -- not accepted
  Mammillaria solisioides Backeb. -- not accepted
  Mammillaria sonorensis R.T. Craig -- accepted
  Mammillaria sphacelata Mart. -- accepted
  Mammillaria sphacelata ssp. sphacelata Mart. -- accepted
  Mammillaria sphacelata ssp. viperina (J.A. Purpus) D.R. Hunt -- accepted
  Mammillaria sphaerica A. Dietr. -- accepted -- Biznaga esférica, longmamma nipple cactus, longspine nipple cactus
  Mammillaria spinosissima Lem. -- accepted
  Mammillaria spinosissima ssp. pilcayensis (Bravo) D.R. Hunt -- accepted
  Mammillaria spinosissima ssp. spinosissima Lem. -- accepted
  Mammillaria spinosissima ssp. tepoxtlana D.R. Hunt -- accepted
  Mammillaria stampferi Repp. -- not accepted
  Mammillaria standleyi (Britton & Rose) Orcutt -- accepted
  Mammillaria stella-de-tacubaya Heese -- not accepted
  Mammillaria strobilina Tiegel -- not accepted
  Mammillaria subducta (D.R. Hunt) Repp. -- not accepted
  Mammillaria subdurispina Backbg. -- not accepted
  Mammillaria subtilis Backeb. -- not accepted
  Mammillaria sulcata Engelm. -- not accepted
  Mammillaria supertexta Mart. ex Pfeiff. -- accepted
  Mammillaria supraflumen Repp. -- not accepted
  Mammillaria surculosa Boed. -- accepted
  Mammillaria swinglei (Britton & Rose) Boed. -- not accepted
  Mammillaria tayloriorum Glass & R.A. Foster -- accepted
  Mammillaria tegelbergiana G.E. Linds. -- not accepted
  Mammillaria tenampensis (Britton & Rose) A. Berger -- not accepted
  Mammillaria tepexicensis J. Meyrán -- not accepted
  Mammillaria tesopacensis R.T. Craig -- not accepted
  Mammillaria tetrancistra Engelm. -- accepted -- Biznaga de cuatro ganchos, common fishhook cactus, corkseed pincushion cactus
  Mammillaria tezontle W.A. Fitz Maur. & B. Fitz Maur. -- not accepted
  Mammillaria theresae Cutak -- accepted
  Mammillaria thornberi Orcutt -- accepted -- Biznaga de Thornber, Thornber's nipple cactus, Thornber's pincushion cactus
  Mammillaria thornberi ssp. thornberi Orcutt -- accepted
  Mammillaria thornberi ssp. yaquensis (R.T. Craig) D.R. Hunt -- accepted
  Mammillaria tlalocii Repp. -- not accepted
  Mammillaria tobuschii W.T. Marshall -- not accepted
  Mammillaria tolimensis R.T. Craig -- not accepted
  Mammillaria tonalensis D.R. Hunt -- accepted
  Mammillaria tropica Repp. -- not accepted
  Mammillaria tuberculosa Engelm. -- not accepted
  Mammillaria uberiformis Zucc. ex Pfeiff. -- not accepted
  Mammillaria uncinata Zucc. ex Pfeiff. -- accepted
  Mammillaria unihamata Boed. -- not accepted
  Mammillaria vagaspina R.T. Craig -- not accepted
  Mammillaria vallensis Repp. -- not accepted
  Mammillaria variabilis Repp. -- not accepted
  Mammillaria varicolor (Tiegel) D. Weniger -- not accepted
  Mammillaria varieaculeata Buchenau -- accepted
  Mammillaria vaupelii Tiegel -- not accepted
  Mammillaria verhaertiana Boed. -- not accepted
  Mammillaria verticealba Repp. -- not accepted
  Mammillaria vetula Mart. -- accepted
  Mammillaria vetula ssp. gracilis (Pfeiff.) D.R. Hunt -- accepted
  Mammillaria vetula ssp. vetula Mart. -- accepted
  Mammillaria viereckii Boed. -- not accepted
  Mammillaria viescensis Rogoz. & Appenz. -- not accepted
  Mammillaria viperina J.A. Purpus -- not accepted
  Mammillaria virginis Fittkau & Kladiwa -- not accepted
  Mammillaria viridiflora (Britton & Rose) Cory -- accepted -- Biznaga de flor verde, greenflower nipple cactus
  Mammillaria voburnensis var. eichlamii (Quehl) Repp. -- not accepted
  Mammillaria wagneriana Boed. -- accepted
  Mammillaria weingartiana Boed. -- accepted
  Mammillaria wiesingeri Boed. -- accepted
  Mammillaria wiesingeri ssp. apamensis (Repp.) D.R. Hunt -- accepted
  Mammillaria wiesingeri ssp. wiesingeri Boed. -- accepted
  Mammillaria wilcoxii Toumey ex K. Schum. -- not accepted -- Biznaga de Wilcox
  Mammillaria wildii A. Dietr. -- not accepted
  Mammillaria winteriae Boed. -- not accepted
  Mammillaria winteriae ssp. aramberri D.R. Hunt -- not accepted
  Mammillaria winteriae ssp. winteriae Boed. -- not accepted
  Mammillaria wohlschlageri Repp. -- not accepted
  Mammillaria woodsii Krainz -- not accepted
  Mammillaria woodsii R.T. Craig -- not accepted
  Mammillaria wrightii Engelm. -- accepted -- Biznaga de Wright, Wright's nipple cactus, Wright's pincushion cactus
  Mammillaria wrightii ssp. wilcoxii (Toumey ex K. Schum.) D.R. Hunt -- accepted
  Mammillaria wrightii ssp. wrightii Engelm. -- accepted
  Mammillaria wuthenauiana Backeb. -- not accepted
  Mammillaria xaltianguensis Sánchez-Mej. -- accepted
  Mammillaria xaltianguensis ssp. bambusiphila (Repp.) D.R. Hunt -- accepted
  Mammillaria xaltianguensis ssp. xaltianguensis Sánchez-Mej. -- accepted
  Mammillaria xanthina (Britton & Rose) Boed. -- not accepted
  Mammillaria xochipilli Repp. -- not accepted
  Mammillaria yaquensis R.T. Craig -- not accepted
  Mammillaria yucatanensis (Britton & Rose) Orcutt -- not accepted
  Mammillaria zacatecasensis Shurly -- not accepted
  Mammillaria zahniana Boed. & F. Ritter -- not accepted
  Mammillaria zapilotensis R.T. Craig -- not accepted
  Mammillaria zeilmanniana Boed. -- accepted
  Mammillaria zephyranthoides Scheidw. -- accepted
  Mammillaria zephyranthoides ssp. heidiae (Krainz) Lüthy -- accepted
  Mammillaria zephyranthoides ssp. zephyranthoides Scheidw. -- accepted
  Mammillaria zeyeriana F. Haage ex K. Schum. -- not accepted
  Mammillaria zublerae Repp. -- accepted
  Mammilloydia Buxb. -- not accepted
  Mammilloydia candida (Scheidw.) Buxb. -- not accepted
  Marenopuntia Backeb. -- not accepted
  Marenopuntia marenae (S.H. Parsons) Backeb. -- not accepted
  Marginatocereus Backeb. -- not accepted
  Marginatocereus marginatus (DC.) Backeb. -- not accepted
  Marniera Backeb. -- not accepted
  Marniera chrysocardium (Alexander) Backeb. -- not accepted
  Marshallocereus Backeb. -- not accepted
  Marshallocereus aragonii (F.A.C. Weber) Backeb. -- not accepted
  Marshallocereus thurberi (Engelm.) Backeb. -- not accepted
  Marshallocereus thurberi var. littoralis (K. Brandegee) Backeb. -- not accepted
  Matucana Britton & Rose -- accepted
  Matucana aurantiaca (Vaupel) Buxb. -- accepted
  Matucana aurantiaca ssp. aurantiaca (Vaupel) Buxb. -- accepted
  Matucana aurantiaca ssp. currundayensis (F. Ritter) Mottram -- accepted
  Matucana aurantiaca ssp. fruticosa (F. Ritter) Mottram -- accepted
  Matucana aurantiaca ssp. hastifera (F. Ritter) Mottram -- accepted
  Matucana aurantiaca ssp. polzii (Diers, Donald & Zecher) Mottram -- accepted
  Matucana aureiflora F. Ritter -- accepted
  Matucana blancii Backeb. -- not accepted
  Matucana breviflora Rauh & Backeb. -- not accepted
  Matucana calliantha F. Ritter -- not accepted
  Matucana celendinensis F. Ritter -- not accepted
  Matucana cereoides Rauh & Backeb. -- not accepted
  Matucana comacephala F. Ritter -- not accepted
  Matucana crinifera F. Ritter -- not accepted
  Matucana currundayensis F. Ritter -- not accepted
  Matucana elongata Rauh & Backeb. -- not accepted
  Matucana formosa F. Ritter -- accepted
  Matucana fruticosa F. Ritter -- not accepted
  Matucana hastifera F. Ritter -- not accepted
  Matucana haynei (Otto) Britton & Rose -- accepted
  Matucana haynei ssp. haynei (Otto) Britton & Rose -- accepted
  Matucana haynei ssp. herzogiana (Backeb.) Mottram -- accepted
  Matucana haynei ssp. hystrix (Rauh & Backeb.) Mottram -- accepted
  Matucana haynei ssp. myriacantha (Vaupel) Mottram -- accepted
  Matucana herzogiana Backeb. -- not accepted
  Matucana huagalensis (Donald & A.B. Lau) Bregman -- accepted
  Matucana hystrix Rauh & Backeb. -- not accepted
  Matucana intertexta F. Ritter -- accepted
  Matucana krahnii (Donald) Bregman -- accepted
  Matucana madisoniorum (Hutchison) G.D. Rowley -- accepted
  Matucana megalantha F. Ritter -- not accepted
  Matucana multicolor Rauh & Backeb. -- not accepted
  Matucana oreodoxa (F. Ritter) Slaba -- accepted
  Matucana pallarensis F. Ritter -- not accepted
  Matucana paucicostata F. Ritter -- accepted
  Matucana polzii Diers, Donald & Zecher -- not accepted
  Matucana pujupatii (Donald & A.B. Lau) Bregman -- accepted
  Matucana purpureoalba F. Ritter -- not accepted
  Matucana ritteri Buining -- accepted
  Matucana supertexta F. Ritter -- not accepted
  Matucana tuberculata (Donald) Bregman -- accepted
  Matucana tuberculosa (Donald) F. Ritter -- not accepted
  Matucana variabilis Rauh & Backeb. -- not accepted
  Matucana weberbaueri (Vaupel) Backeb. -- accepted
  Matucana winteri F. Ritter -- not accepted
  Matucana yanganucensis Rauh & Backeb. -- not accepted
  Mediocactus Britton & Rose -- not accepted
  Mediocactus hahnianus Backeb. -- not accepted
  Mediocactus hassleri (K. Schum.) Backeb. -- not accepted
  Mediocactus lindmanii (F.A.C. Weber) Backeb. -- not accepted
  Mediocactus megalanthus (K. Schum. ex Vaupel) Britton & Rose -- not accepted
  Mediolobivia Backeb. -- not accepted
  Mediolobivia auranitida (Wessner) Krainz -- not accepted
  Mediolobivia brachiantha (Wessner) Krainz -- not accepted
  Mediolobivia conoidea (Wessner) Krainz -- not accepted
  Mediolobivia costata (Werderm.) Krainz -- not accepted
  Mediolobivia elegans Backeb. -- not accepted
  Mediolobivia euanthema var. fricii Backeb. -- not accepted
  Mediolobivia eucaliptana (Backeb.) Krainz -- not accepted
  Mediolobivia haefneriana Cullmann -- not accepted
  Mediolobivia hirsutissima Cárdenas -- not accepted
  Mediolobivia ithyacantha Cárdenas -- not accepted
  Mediolobivia neopygmaea Backeb. -- not accepted
  Mediolobivia nigricans (Wessner) Krainz -- not accepted
  Mediolobivia pygmaea (R.E. Fr.) Krainz -- not accepted
  Mediolobivia ritteri (Wessner) Krainz -- not accepted
  Mediolobivia schmiedcheniana (J. Kohler) Krainz -- not accepted
  Mediolobivia steinmannii (Solms) Krainz -- not accepted
  Melocactus (L.) Link & Otto -- accepted
  Melocactus acispinosus Buining & Brederoo -- not accepted
  Melocactus actinacanthus Areces -- not accepted
  Melocactus acunae León -- not accepted
  Melocactus amethystinus Buining & Brederoo -- not accepted
  Melocactus ammotrophus Buining & Brederoo -- not accepted
  Melocactus amstutziae Rauh & Backeb. -- not accepted
  Melocactus andinus R. Gruber ex N.P. Taylor -- accepted
  Melocactus andinus ssp. andinus R. Gruber ex N.P. Taylor -- accepted
  Melocactus andinus ssp. hernandezii (Fern. Alonso & Xhonneux) N.P. Taylor -- accepted
  Melocactus andinus ssp. soatensis Fern. Alonso & Xhonneux -- not accepted
  Melocactus arcuatispinus Brederoo & Eerkens -- not accepted
  Melocactus axiniphorus Buining & Brederoo -- not accepted
  Melocactus azulensis Buining & Brederoo -- not accepted
  Melocactus azureus Buining & Brederoo -- accepted
  Melocactus azureus ssp. ferreophilus (Buining & Brederoo) N.P. Taylor -- not accepted
  Melocactus bahiensis (Britton & Rose) Luetzelb. -- accepted
  Melocactus bahiensis ssp. amethystinus (Buining & Brederoo) N.P. Taylor -- accepted
  Melocactus bahiensis ssp. bahiensis (Britton & Rose) Luetzelb. -- accepted
  Melocactus bellavistensis Rauh & Backeb. -- accepted
  Melocactus bellavistensis ssp. bellavistensis Rauh & Backeb. -- accepted
  Melocactus bellavistensis ssp. onychacanthus (F. Ritter) N.P. Taylor -- accepted
  Melocactus braunii Esteves -- accepted
  Melocactus brederooianus Buining -- accepted
  Melocactus broadwayi (Britton & Rose) A. Berger -- accepted -- Turk's cap
  Melocactus caesius H.L. Wendl. -- not accepted
  Melocactus canescens F. Ritter -- not accepted
  Melocactus caroli-linnaei N.P. Taylor -- accepted
  Melocactus citrispinus Antesb. -- not accepted
  Melocactus communis (W.T. Aiton) Link & Otto -- not accepted
  Melocactus concinnus Buining & Brederoo -- accepted
  Melocactus conoideus Buining & Brederoo -- accepted
  Melocactus coronatus (Lam.) Backeb. -- not accepted
  Melocactus cremnophilus Buining & Brederoo -- not accepted
  Melocactus curvicornis Buining & Brederoo -- not accepted
  Melocactus curvispinus Pfeiff. -- accepted
  Melocactus curvispinus ssp. caesius (H.L. Wendl.) N.P. Taylor -- accepted
  Melocactus curvispinus ssp. curvispinus Pfeiff. -- accepted
  Melocactus curvispinus ssp. dawsonii (Bravo) N.P. Taylor -- accepted
  Melocactus curvispinus ssp. koolwijkianus (Suringar) G. Thomson -- accepted
  Melocactus dawsonii Bravo -- not accepted
  Melocactus dawsonii ssp. dawsonii Bravo -- not accepted
  Melocactus deinacanthus Buining & Brederoo -- accepted
  Melocactus deinacanthus ssp. florschuetzianus (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Melocactus deinacanthus ssp. longicarpus (Buining & Brederoo) P.J. Braun & Esteves -- not accepted
  Melocactus depressus Hook. -- not accepted
  Melocactus diersianus Buining & Brederoo -- not accepted
  Melocactus ellemeetii Miq. -- not accepted
  Melocactus ernestii Vaupel -- accepted
  Melocactus ernestii ssp. ernestii Vaupel -- accepted
  Melocactus ernestii ssp. longicarpus (Buining & Brederoo) N.P. Taylor -- accepted
  Melocactus erythracanthus Buining & Brederoo -- not accepted
  Melocactus erythracantus Buining & Brederoo -- not accepted
  Melocactus ferreophilus Buining & Brederoo -- accepted
  Melocactus florschuetzianus Buining & Brederoo -- not accepted
  Melocactus florschutzianus Buining & Brederoo -- not accepted
  Melocactus fortalezensis Rauh & Backeb. -- not accepted
  Melocactus giganteus Buining & Brederoo -- not accepted
  Melocactus glaucescens Buining & Brederoo -- accepted
  Melocactus glauxianus Brederoo & C.A.L. Bercht -- not accepted
  Melocactus grisoleoviridis Buining & Brederoo -- not accepted
  Melocactus guanensis Xhonneux & Fern. Alonso -- not accepted
  Melocactus guaricensis Croizat -- not accepted
  Melocactus guitarti León -- not accepted
  Melocactus harlowii (Britton & Rose) Vaupel -- accepted
  Melocactus helvolilanthus Buining & Brederoo -- not accepted
  Melocactus hernandezii Fern. Alonso & Xhonneux -- not accepted
  Melocactus hispaniolicus Vaupel -- not accepted