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Kingdom Plantae |
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Ferocactus hamatacanthus var. sinuatus (A. Dietr.) L.D. Benson – not accepted – Turk's head
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Calliandra humilis var. reticulata (A. Gray) L.D. Benson – accepted – dwarf stickpea
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Ranunculus alismifolius var. lemmonii (A. Gray) L.D. Benson – accepted – plantainleaf buttercup
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Ranunculus cardiophyllus var. subsagittatus (A. Gray) L.D. Benson – not accepted
|
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Ranunculus eschscholtzii var. suksdorfii (A. Gray) L.D. Benson – accepted – Suksdorf's buttercup
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Ranunculus inamoenus var. subaffinis (A. Gray) L.D. Benson – accepted – graceful buttercup
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Ranunculus inamoenus var. alpeophilus (A. Nelson) L.D. Benson – not accepted – graceful buttercup
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Coryphantha scheeri var. robustispina (A. Schott ex Engelm.) L.D. Benson – not accepted – longtubercle beehive cactus, Pima pineapple cactus
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Pediocactus peeblesianus var. fickeiseniae (Backeb.) L.D. Benson – not accepted – Fickeisen's pediocactus, Navajo pincushion cactus, Fickeisen plains cactus
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Pediocactus peeblesianus var. fickeisenii (Backeb.) L.D. Benson – not accepted
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Senecio douglasii var. longilobus (Benth.) L.D. Benson – not accepted
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Ranunculus flammula var. ovalis (Bigelow) L.D. Benson – accepted
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Coryphantha strobiliformis var. orcuttii (Boed.) L.D. Benson – not accepted
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Echinocactus mesae-verdae (Boissev. & C. Davidson) L.D. Benson – not accepted
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Sclerocactus mesae-verdae (Boissev. & C. Davidson) L.D. Benson – accepted – Mesa Verde fishhook cactus, Mesa Verde cactus
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Ranunculus harveyi var. australis (Brandegee) L.D. Benson – accepted
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Cereus robinii var. keyensis (Britton & Rose) L.D. Benson – not accepted
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Coryphantha macromeris var. runyonii (Britton & Rose) L.D. Benson – not accepted – Runyon's beehive cactus
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Echinocereus reichenbachii var. fitchii (Britton & Rose) L.D. Benson – not accepted – Fitch's hedgehog cactus
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Echinocereus reichenbachii var. perbellus (Britton & Rose) L.D. Benson – accepted – lace hedgehog cactus
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Opuntia polyacantha var. juniperina (Britton & Rose) L.D. Benson – accepted – Juniper pricklypear
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Opuntia whipplei var. viridiflora (Britton & Rose) L.D. Benson – not accepted
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Ranunculus aquatilis var. porteri (Britton) L.D. Benson – not accepted
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Sambucus caerulea var. mexicana (C. Presl ex DC.) L.D. Benson – not accepted
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Sambucus cerulea var. mexicana (C. Presl ex DC.) L.D. Benson – not accepted
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Opuntia acanthocarpa var. ganderi (C.B. Wolf) L.D. Benson – not accepted – Gander's buckhorn cholla
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Echinocereus fendleri var. kuenzleri (Castetter, P. Pierce & K.H. Schwer.) L.D. Benson – not accepted – Kuenzler's hedgehog cactus
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Coryphantha vivipara var. rosea (Clokey) L.D. Benson – not accepted
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Opuntia whipplei var. multigeniculata (Clokey) L.D. Benson – not accepted – rattail cholla, blue diamond cholla
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Echinocereus engelmannii var. decumbens (Clover & Jotter) L.D. Benson – not accepted
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Opuntia basilaris var. longiareolata (Clover & Jotter) L.D. Benson – accepted – beavertail pricklypear, Grand Canyon beavertail cactus
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Coryphantha missouriensis var. marstonii (Clover) L.D. Benson – not accepted
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Echinocereus berlandieri var. angusticeps (Clover) L.D. Benson – not accepted
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Echinocereus blankii var. angusticeps (Clover) L.D. Benson – not accepted
|
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Sclerocactus whipplei var. roseus (Clover) L.D. Benson – not accepted
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Ephedra californica var. funerea (Coville & Morton) L.D. Benson – not accepted
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Echinocactus peeblesianus (Croizat) L.D. Benson – not accepted
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Pediocactus peeblesianus (Croizat) L.D. Benson – accepted – Peebles' Navajo cactus, Peebles' pediocactus, Navajo pincushion cactus
|
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Pediocactus peeblesianus ssp. peeblesianus (Croizat) L.D. Benson – accepted
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Pediocactus peeblesianus var. peeblesianus (Croizat) L.D. Benson – not accepted – Navajo pincushion cactus, Peebles Navajo cactus
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Ephedra viridis var. viscida (Cutler) L.D. Benson – not accepted
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Ranunculus gmelini var. hookeri (D. Don) L.D. Benson – not accepted
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Ranunculus gmelinii var. hookeri (D. Don) L.D. Benson – not accepted
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Gutierrezia sarothrae var. microcephala (DC.) L.D. Benson – not accepted
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Ranunculus occidentalis var. nelsonii (DC.) L.D. Benson – accepted – Nelson's buttercup
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Ranunculus eschscholtzii var. trisectus (Eastw.) L.D. Benson – accepted – threesection buttercup
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Opuntia polyacantha var. rufispina (Engelm. & J.M. Bigelow ex Engelm.) L.D. Benson – accepted – hairspine pricklypear, plains pricklypear, red-spine pricklypear
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Echinocereus triglochidiatus var. mojavensis (Engelm. & J.M. Bigelow) L.D. Benson – not accepted – Mojave kingcup cactus, Mohave hedgehog cactus
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Opuntia acanthocarpa var. major (Engelm. & J.M. Bigelow) L.D. Benson – not accepted – buckhorn cholla, slender joint buckhorn cholla
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Opuntia erinacea var. hystricina (Engelm. & J.M. Bigelow) L.D. Benson – not accepted – grizzlybear pricklypear, porcupine pricklypear
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Opuntia phaeacantha var. camanchica (Engelm. & J.M. Bigelow) L.D. Benson – accepted – tulip pricklypear, brownspine pricklypear
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Opuntia tunicata var. davisii (Engelm. & J.M. Bigelow) L.D. Benson – not accepted – thistle cholla, Jeff Davis cholla
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Sclerocactus spinosior (Engelm.) D. Woodruff & L.D. Benson – accepted – desert valley fishhook cactus, desert valley fish-hook cactus
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Sclerocactus spinosior ssp. spinosior (Engelm.) D. Woodruff & L.D. Benson – not accepted
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Echinocereus triglochidiatus var. melanacanthus (Engelm. ex A. Gray) L.D. Benson – not accepted
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Echinocereus fasciculatus (Engelm. ex B.D. Jacks.) L.D. Benson – accepted – Órgano-pequeńo de manojos
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Echinocereus fasciculatus ssp. fasciculatus (Engelm. ex B.D. Jacks.) L.D. Benson – not accepted
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Pediocactus sileri (Engelm. ex J.M. Coult.) L.D. Benson – accepted – Siler's pincushion cactus
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Ephedra nevadensis var. aspera (Engelm. ex S. Watson) L.D. Benson – not accepted
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Ancistrocactus uncinatus var. wrightii (Engelm.) L.D. Benson – not accepted
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Coryphantha cornifera var. echinus (Engelm.) L.D. Benson – not accepted – rhinoceros cactus
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Coryphantha missouriensis var. caespitosa (Engelm.) L.D. Benson – not accepted
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Coryphantha missouriensis var. robustior (Engelm.) L.D. Benson – not accepted
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Coryphantha scheeri var. valida (Engelm.) L.D. Benson – not accepted – Scheer's beehive cactus, pineapple cactus
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Echinocereus enneacanthus var. dubius (Engelm.) L.D. Benson – not accepted
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Echinocereus enneacanthus var. stramineus (Engelm.) L.D. Benson – not accepted
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Echinocereus pectinatus var. minor (Engelm.) L.D. Benson – not accepted
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Echinocereus triglochidiatus var. polyacanthus (Engelm.) L.D. Benson – not accepted
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Ferocactus setispinus (Engelm.) L.D. Benson – not accepted
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Mammillaria gummifera var. applanata (Engelm.) L.D. Benson – not accepted
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Mammillaria gummifera var. hemisphaerica (Engelm.) L.D. Benson – not accepted
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Mammillaria gummifera var. meiacantha (Engelm.) L.D. Benson – not accepted
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Mammillaria heyderi var. gummifera (Engelm.) L.D. Benson – not accepted
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Mammillaria heyderi var. meiacantha (Engelm.) L.D. Benson – not accepted – little nipple cactus
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Mammillaria vivipara var. arizonica (Engelm.) L.D. Benson – not accepted
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Neolloydia intertexta (Engelm.) L.D. Benson – not accepted
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Neolloydia intertexta var. dasyacantha (Engelm.) L.D. Benson – not accepted
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Neolloydia unguispina (Engelm.) L.D. Benson – not accepted
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Opuntia compressa var. macrorhiza (Engelm.) L.D. Benson – not accepted
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Opuntia compressa var. microsperma (Engelm.) L.D. Benson – not accepted
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Opuntia erinacea var. utahensis (Engelm.) L.D. Benson – not accepted – Utah grizzlybear pricklypear, Utah pricklypear
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Opuntia parryi var. serpentina (Engelm.) L.D. Benson – not accepted – serpentine cholla, snake cholla
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Opuntia schottii var. grahamii (Engelm.) L.D. Benson – not accepted
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Opuntia violacea var. macrocentra (Engelm.) L.D. Benson – not accepted
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Pediocactus papyracanthus (Engelm.) L.D. Benson – not accepted – paper-spined cactus
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Phoradendron tomentosum var. macrophyllum (Engelm.) L.D. Benson – not accepted
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Ranunculus laxicaulis var. angustifolia (Engelm.) L.D. Benson – not accepted
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Ranunculus laxicaulis var. angustifolius (Engelm.) L.D. Benson – not accepted
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Ranunculus pusillus var. angustifolius (Engelm.) L.D. Benson – not accepted – low spearwort
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Sclerocactus pubispinus (Engelm.) L.D. Benson – accepted – Great Basin fishhook cactus
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Sclerocactus pubispinus var. pubispinus (Engelm.) L.D. Benson – not accepted
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Salvia carnosa var. gilmanii (Epling) L.D. Benson – not accepted
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Ancistrocactus crassihamatus (F.A.C. Weber) L.D. Benson – not accepted
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Opuntia violacea var. gosseliniana (F.A.C. Weber) L.D. Benson – not accepted
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Opuntia littoralis var. piercei (Fosberg) L.D. Benson & Walk. – accepted – coastal pricklypear
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Ancistrocactus uncinatus (Galeotti ex Pfeiff.) L.D. Benson – not accepted
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Ancistrocactus uncinatus var. uncinatus (Galeotti ex Pfeiff.) L.D. Benson – not accepted
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Nemacaulis denudata var. gracilis Goodman & L.D. Benson – accepted – cottonheads
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Ranunculus californicus var. rugulosus (Greene) L.D. Benson – not accepted
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Ranunculus canus var. laetus (Greene) L.D. Benson – not accepted
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Ranunculus canus var. ludovicianus (Greene) L.D. Benson – accepted
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Ranunculus eschscholtzii var. eximius (Greene) L.D. Benson – accepted – tundra buttercup
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Ranunculus flammula var. samolifolius (Greene) L.D. Benson – not accepted
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Ranunculus natans var. intertextus (Greene) L.D. Benson – not accepted
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Ranunculus occidentalis var. turneri (Greene) L.D. Benson – not accepted
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Ranunculus uncinatus var. earlei (Greene) L.D. Benson – not accepted – Earle's buttercup
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Opuntia lindheimeri var. cuija (Griffiths & Hare) L.D. Benson – not accepted
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Opuntia violacea var. santa-rita (Griffiths & Hare) L.D. Benson – not accepted
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Opuntia erinacea var. columbiana (Griffiths) L.D. Benson – not accepted – grizzlybear pricklypear
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Opuntia lindheimeri var. linguiformis (Griffiths) L.D. Benson – not accepted – cow-tongue prickly-pear
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Opuntia lindheimeri var. tricolor (Griffiths) L.D. Benson – not accepted
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Opuntia phaeacantha var. superbospina (Griffiths) L.D. Benson – not accepted
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Opuntia phaeacantha var. wootonii (Griffiths) L.D. Benson – not accepted – Wooton's pricklypear
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Opuntia strigil var. flexospina (Griffiths) L.D. Benson – not accepted
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Opuntia phaeacantha var. discata (Griffiths) L.D. Benson & Walk. – not accepted
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Ranunculus hydrocharoides var. stolonifer (Hemsl.) L.D. Benson – not accepted – frogbit buttercup
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Coryphantha duncanii (Hester) L.D. Benson – not accepted – Duncan's cory cactus
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Neolloydia mariposensis (Hester) L.D. Benson – not accepted – Lloyd's Mariposa cactus
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Sapindus saponaria var. drummondii (Hook. & Arn.) L.D. Benson – accepted – western soapberry
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Ranunculus pacificus (Hultén) L.D. Benson – accepted – Pacific buttercup
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Colubrina texensis var. californica (I.M. Johnst.) L.D. Benson – not accepted
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Coryphantha vivipara var. alversonii (J.M. Coult.) L.D. Benson – not accepted – Alverson's foxtail cactus
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Echinocereus pectinatus var. neomexicanus (J.M. Coult.) L.D. Benson – not accepted
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Neolloydia erectocentra (J.M. Coult.) L.D. Benson – not accepted
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Opuntia phaeacantha var. laevis (J.M. Coult.) L.D. Benson – accepted – tulip pricklypear, smooth pricklypear
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Pediocactus simpsonii var. robustior (J.M. Coult.) L.D. Benson – not accepted – snowball cactus
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Opuntia littoralis var. vaseyi (J.M. Coult.) L.D. Benson & Walk. – not accepted – Vasey's coastal pricklypear, coastal pricklypear
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Quercus turbinella var. californica (J.M. Tucker) L.D. Benson – not accepted
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Arctostaphylos manzanita var. elegans (Jeps.) L.D. Benson – not accepted
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Coryphantha sulcata var. nickelsiae (K. Brandegee) L.D. Benson – not accepted – Nickels' cory cactus
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Opuntia erinacea var. xanthostemma (K. Schum. ex Hirscht-Zehl.) L.D. Benson – not accepted
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Cereus grandiflorus var. armatus (K. Schum.) L.D. Benson – not accepted
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Sclerocactus glaucus (K. Schum.) L.D. Benson – accepted – Uinta Basin hookless cactus, Colorado hookless cactus
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Opuntia stricta var. dillenii (Ker Gawl.) L.D. Benson – accepted – erect pricklypear
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Coryphantha scheeri var. uncinata L.D. Benson – not accepted – Scheer's beehive cactus
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Echinocactus horizonthalonius var. nicholii L.D. Benson – not accepted – Nichol's echinocactus, Nichols Turks head cactus
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Echinocereus engelmannii var. acicularis L.D. Benson – accepted – Engelmann's hedgehog cactus, needle hedgehog cactus
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Echinocereus engelmannii var. armatus L.D. Benson – accepted – Engelmann's hedgehog cactus, Saint's cactus
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Echinocereus engelmannii var. howei L.D. Benson – not accepted – Howe's cactus, Howe's hedgehog cactus
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Echinocereus engelmannii var. nicholii L.D. Benson – not accepted
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Echinocereus engelmannii var. purpureus L.D. Benson – not accepted – purple-spined hedgehog cactus, Engelmann's hedgehog cactus
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Echinocereus pectinatus var. wenigeri L.D. Benson – not accepted – Weniger's hedgehog cactus, Weniger's cactus
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Echinocereus reichenbachii var. albertii L.D. Benson – not accepted – black lace cactus
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Echinocereus triglochidiatus var. gurneyi L.D. Benson – not accepted
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Echinocereus viridiflorus var. correllii L.D. Benson – not accepted – Correll's hedgehog cactus
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Epithelantha bokei L.D. Benson – accepted – Biznaga-blanca de Boquillas, Boke's button cactus
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Ferocactus acanthodes var. eastwoodiae L.D. Benson – not accepted
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Haplophyton cimicidum var. crooksii L.D. Benson – accepted – cockroachplant
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Larrea tridentata var. arenaria L.D. Benson – not accepted – creosote bush
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Mammillaria orestera L.D. Benson – not accepted
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Neolloydia gautii L.D. Benson – not accepted – Gaut's butterfly cactus
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Neolloydia warnockii L.D. Benson – not accepted
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Opuntia acanthocarpa var. coloradensis L.D. Benson – not accepted – Colorado buckhorn cholla
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Opuntia echinocarpa var. wolfii L.D. Benson – not accepted
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Opuntia lindheimeri var. lehmannii L.D. Benson – not accepted
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Opuntia macrocentra var. martiniana L.D. Benson – not accepted
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Opuntia nicholii L.D. Benson – accepted – Navajo Bridge pricklypear
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Opuntia phaeacantha var. flavispina L.D. Benson – not accepted
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Opuntia stanlyi var. peeblesiana L.D. Benson – not accepted
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Opuntia violacea var. castetteri L.D. Benson – not accepted
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Opuntia wigginsi L.D. Benson – not accepted
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Opuntia wigginsii L.D. Benson – not accepted – Wiggins' cholla, Wiggin's cholla
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Pediocactus bradyi L.D. Benson – accepted – Brady's hedgehog cactus, Brady's pediocactus, Brady's pincushion cactus
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Pediocactus bradyi ssp. bradyi L.D. Benson – not accepted
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Pediocactus knowltonii L.D. Benson – accepted – Knowlton's miniature cactus, Knowlton's cactus
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Pediocactus peeblesianus var. maianus L.D. Benson – accepted – Navajo pincushion cactus
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Pleuropogon davyi L.D. Benson – not accepted
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Pleuropogon refractus var. hooverianus L.D. Benson – not accepted
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Prosopis juliflora var. torreyana L.D. Benson – not accepted
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Ranunculus acriformis var. aestivalis L.D. Benson – accepted – sharpleaf buttercup, Autumn buttercup, fall buttercup
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Ranunculus acriformis var. typicus L.D. Benson – not accepted
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Ranunculus adoneus var. typicus L.D. Benson – not accepted
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Ranunculus alismifolius var. davisii L.D. Benson – accepted – Davis' buttercup
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Ranunculus alismifolius var. typicus L.D. Benson – not accepted
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Ranunculus aquatilis var. harrisii L.D. Benson – not accepted
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Ranunculus aquatilis var. lalondei L.D. Benson – not accepted
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Ranunculus aquatilis var. typicus L.D. Benson – not accepted
|
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Ranunculus arizonicus var. typicus L.D. Benson – not accepted
|
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Ranunculus austro-oreganus L.D. Benson – accepted – Southern Oregon buttercup
|
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Ranunculus austrooreganus L.D. Benson – not accepted – Southern Oregon buttercup
|
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Ranunculus californicus var. austromontanus L.D. Benson – not accepted
|
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Ranunculus californicus var. typicus L.D. Benson – not accepted
|
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Ranunculus canus var. typicus L.D. Benson – not accepted
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Ranunculus cardiophyllus var. coloradensis L.D. Benson – not accepted
|
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Ranunculus cardiophyllus var. typicus L.D. Benson – not accepted
|
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Ranunculus cymbalaria var. typicus L.D. Benson – not accepted
|
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Ranunculus eastwoodianus L.D. Benson – not accepted – Eastwood's buttercup
|
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Ranunculus eschscholtzii var. hultenianus L.D. Benson – accepted – Hulten's buttercup
|
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Ranunculus eschscholtzii var. typicus L.D. Benson – not accepted
|
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Ranunculus fascicularis var. typicus L.D. Benson – not accepted
|
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Ranunculus glaberrimus var. reconditus L.D. Benson – not accepted – sagebrush buttercup
|
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Ranunculus glaberrimus var. typicus L.D. Benson – not accepted
|
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Ranunculus gmelinii var. typicus L.D. Benson – not accepted
|
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Ranunculus harveyi var. typicus L.D. Benson – not accepted
|
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Ranunculus hispidus var. eurylobus L.D. Benson – not accepted
|
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Ranunculus hispidus var. greenmanii L.D. Benson – not accepted
|
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Ranunculus hispidus var. typicus L.D. Benson – not accepted
|
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Ranunculus hydrocharoides var. typicus L.D. Benson – not accepted
|
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Ranunculus inamoenus var. typicus L.D. Benson – not accepted
|
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Ranunculus macauleyi var. brandegeei L.D. Benson – not accepted – Brandegee's buttercup
|
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Ranunculus macauleyi var. typicus L.D. Benson – not accepted
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Ranunculus macranthus var. arsenei L.D. Benson – not accepted
|
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Ranunculus macranthus var. typicus L.D. Benson – not accepted
|
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Ranunculus natans var. typicus L.D. Benson – not accepted
|
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Ranunculus occidentalis var. hexasepalus L.D. Benson – accepted – western buttercup
|
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Ranunculus occidentalis var. typicus L.D. Benson – not accepted
|
|
Ranunculus oresterus L.D. Benson – accepted – Blue Mountain buttercup
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Ranunculus orthorhynchus var. alaschensis L.D. Benson – not accepted
|
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Ranunculus orthorhynchus var. typicus L.D. Benson – not accepted
|
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Ranunculus pusillus var. typicus L.D. Benson – not accepted
|
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Ranunculus recurvatus var. typicus L.D. Benson – not accepted
|
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Ranunculus sceleratus var. typicus L.D. Benson – not accepted
|
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Ranunculus septentrionalis var. pterocarpus L.D. Benson – not accepted
|
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Ranunculus uncinatus var. typicus L.D. Benson – not accepted
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Sclerocactus pubispinus var. sileri L.D. Benson – not accepted
|
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Sclerocactus wrightiae L.D. Benson – accepted – Wright's fishhook cactus
|
|
Yucca baccata var. brevifolia L.D. Benson & Darrow – accepted – Spanish dagger
|
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Opuntia littoralis var. austrocalifornica L.D. Benson & Walk. – accepted – coastal pricklypear
|
|
Turbinicarpus gautii (L.D. Benson) A.D. Zimmerman – not accepted – top cactus, Biznaga-cono invertido plateada
|
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Pediocactus wrightiae (L.D. Benson) Arp – not accepted
|
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Echinocereus nicholii (L.D. Benson) B.D. Parfitt – accepted – Nichol's hedgehog cactus
|
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Echinocereus nicholii ssp. nicholii (L.D. Benson) B.D. Parfitt – not accepted
|
|
Opuntia martiniana (L.D. Benson) B.D. Parfitt – not accepted – seashore cactus, coastal pricklypear
|
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Opuntia polyacantha var. nicholii (L.D. Benson) B.D. Parfitt – accepted
|
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Opuntia engelmannii var. flavispina (L.D. Benson) B.D. Parfitt & Pinkava – accepted – cactus apple, Engelmann's pricklypear
|
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Pleuropogon californicus var. davyi (L.D. Benson) But – accepted – annual semaphoregrass
|
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Echinocactus warnockii (L.D. Benson) D. Weniger – not accepted
|
|
Epithelantha micromeris var. bokei (L.D. Benson) Glass & Foster – not accepted – pingpong ball cactus
|
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Echinomastus warnockii (L.D. Benson) Glass & R.A. Foster – not accepted
|
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Cylindropuntia wigginsii (L.D. Benson) H. Rob. – not accepted
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Pediocactus gautii (L.D. Benson) Halda – not accepted
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Pediocactus simpsonii ssp. bradyi (L.D. Benson) Halda – not accepted
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Pediocactus simpsonii var. knowltonii (L.D. Benson) Halda – not accepted
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Pediocactus warnockii (L.D. Benson) Halda – not accepted
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Ranunculus orthorhynchus ssp. alaschensis (L.D. Benson) Hultén – not accepted
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Pleuropogon hooverianus (L.D. Benson) J.T. Howell – accepted – North Coast semaphoregrass
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Sclerocactus sileri (L.D. Benson) K.D. Heil & J.M. Porter – accepted
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Ferocactus eastwoodiae (L.D. Benson) L.D. Benson – not accepted
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Haplophyton crooksii (L.D. Benson) L.D. Benson – not accepted – cockroachplant
|
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Opuntia littoralis var. martiniana (L.D. Benson) L.D. Benson – not accepted
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Ranunculus coloradensis (L.D. Benson) L.D. Benson – not accepted – Colorado buttercup
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Ranunculus hexasepalus (L.D. Benson) L.D. Benson – not accepted – Queen Charlotte Island buttercup
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Pediocactus peeblesianus ssp. fickeiseniorum (L.D. Benson) Lüthy – accepted
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Cylindropuntia wolfii (L.D. Benson) M.A. Baker – accepted
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Opuntia wolfei (L.D. Benson) M.A. Baker – not accepted
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Opuntia wolfii (L.D. Benson) M.A. Baker – not accepted – Wolf's opuntia
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Prosopis glandulosa var. torreyana (L.D. Benson) M.C. Johnst. – accepted – western honey mesquite
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Echinomastus gautii (L.D. Benson) Mosco & Zanov. – not accepted
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Coryphantha robustispina ssp. uncinata (L.D. Benson) N.P. Taylor – not accepted
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Ferocactus cylindraceus ssp. eastwoodiae (L.D. Benson) N.P. Taylor – accepted
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Ferocactus wrightiae (L.D. Benson) N.P. Taylor – not accepted
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Sclerocactus warnockii (L.D. Benson) N.P. Taylor – accepted – Warnock's fishhook cactus, Biznaga-bola amarilla
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Echinocereus coccineus var. gurneyi (L.D. Benson) S. Brack & K.D. Heil – accepted – Gurney's hedgehog cactus, strawberry cactus
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Ranunculus acris var. aestivalis (L.D. Benson) S.L. Welsh – not accepted
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Ranunculus petiolaris var. arsenei (L.D. Benson) T. Duncan – not accepted – Arsene's buttercup
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Cylindropuntia acanthocarpa ssp. coloradensis (L.D. Benson) U. Guzmán – accepted
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Ranunculus aestivalis (L.D. Benson) Van Buren & K.T. Harper – not accepted – fall buttercup
|
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Echinocereus viridiflorus ssp. correllii (L.D. Benson) W. Blum & Mich. Lange – accepted
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Echinocereus pectinatus ssp. wenigeri (L.D. Benson) W. Blum & Rutow – accepted
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Toumeya bradyi (L.D. Benson) W.H. Earle – not accepted
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Lophochlaena californica var. davyi (L.D. Benson) Á. Löve & D. Löve – not accepted
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Lophochlaena californica var. davyi (L.D. Benson) Á. Löve & D. Löve – not accepted – Davy's semaphoregrass
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Lophochlaena refracta var. hooveriana (L.D. Benson) Á. Löve & D. Löve – not accepted
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Lophochlaena refracta var. hooverianus (L.D. Benson) Á. Löve & D. Löve – not accepted
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Lophochlaena refracta var. hooverianus (L.D. Benson) Á. Löve & D. Löve – not accepted – North Coast semaphoregrass
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Echinocereus reichenbachii var. albispinus (Lahman) L.D. Benson – not accepted
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Ranunculus gmelinii var. terrestris (Ledeb.) L.D. Benson – not accepted
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Cereus robinii (Lem.) L.D. Benson – not accepted – Key tree cactus
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Cereus robinii (Lem.) L.D. Benson – not accepted
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Echinocereus berlandieri var. papillosus (Linke ex Rümpler) L.D. Benson – not accepted
|
|
Opuntia phaeacantha var. spinosibacca (M.S. Anthony) L.D. Benson – not accepted
|
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Coryphantha scheeri (Muehlenpf.) L.D. Benson – not accepted – Biznaga-partida mula, Scheer's beehive cactus, beehive coryphantha
|
|
Coryphantha scheeri var. scheeri (Muehlenpf.) L.D. Benson – not accepted – Scheer's beehive cactus
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Nolina bigelovii var. wolfii (Munz) L.D. Benson – not accepted
|
|
Petalonyx thurberi var. gilmanii (Munz) L.D. Benson – not accepted
|
|
Ranunculus hydrocharoides var. natans (Nees ex G. Don) L.D. Benson – not accepted
|
|
Justicia candicans (Nees) L.D. Benson – accepted – jacobina, Arizona water-willow
|
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Coryphantha vivipara var. bisbeeana (Orcutt) L.D. Benson – not accepted
|
|
Echinocereus fasciculatus var. boyce-thompsonii (Orcutt) L.D. Benson – not accepted
|
|
Echinocereus fendleri var. boyce-thompsonii (Orcutt) L.D. Benson – not accepted – Boyce Thompson hedgehog cactus
|
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Mammillaria grahamii var. oliviae (Orcutt) L.D. Benson – not accepted – olive pincushion cactus, Graham's nipple cactus
|
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Opuntia stanlyi var. parishii (Orcutt) L.D. Benson – not accepted
|
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Dalea fremontii var. minutifolia (Parish) L.D. Benson – not accepted
|
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Dalea fremontii var. pubescens (Parish) L.D. Benson – not accepted
|
|
Dalea fremontii var. simplifolia (Parish) L.D. Benson – not accepted
|
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Echinocereus munzii (Parish) L.D. Benson – not accepted
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|
Neolloydia johnsonii (Parry ex Engelm.) L.D. Benson – not accepted
|
|
Sclerocactus parviflorus var. intermedius (Peebles) D. Woodruff & L.D. Benson – not accepted – intermediate fishhook cactus
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Echinocactus whipplei var. intermedius (Peebles) L.D. Benson – not accepted
|
|
Echinocereus fendleri var. rectispinus (Peebles) L.D. Benson – not accepted – pinkflower hedgehog cactus, right-angled spine hedgehog
|
|
Echinocereus fendleri var. retispinus (Peebles) L.D. Benson – not accepted
|
|
Echinocereus fendleri var. robustus (Peebles) L.D. Benson – not accepted
|
|
Echinocereus reichenbachii var. robustus (Peebles) L.D. Benson – not accepted
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|
Sclerocactus whipplei var. intermedius (Peebles) L.D. Benson – not accepted
|
|
Ranunculus hispidus var. marilandicus (Poir.) L.D. Benson – not accepted
|
|
Coryphantha strobiliformis var. durispina (Quehl) L.D. Benson – not accepted
|
|
Ranunculus pedatifidus var. affinis (R. Br.) L.D. Benson – accepted – northern buttercup
|
|
Coryphantha sneedii var. leei (Rose ex Boed.) L.D. Benson – not accepted – Lee pincushion cactus
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Echinocereus triglochidiatus var. arizonicus (Rose ex Orcutt) L.D. Benson – not accepted – Arizona hedgehog cactus
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|
Mammillaria gummifera var. macdougalii (Rose) L.D. Benson – not accepted
|
|
Mammillaria heyderi var. macdougalii (Rose) L.D. Benson – not accepted – Macdougal's pincushion cactus, Macdougal's nipple cactus
|
|
Opuntia stanlyi var. kunzei (Rose) L.D. Benson – not accepted
|
|
Neolloydia durangensis (Runge) L.D. Benson – not accepted
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|
Atriplex canescens var. garrettii (Rydb.) L.D. Benson – not accepted
|
|
Hymenoclea salsola var. pentalepis (Rydb.) L.D. Benson – not accepted – burrobrush, white burrobrush
|
|
Ranunculus acriformis var. montanensis (Rydb.) L.D. Benson – accepted – mountain sharp buttercup
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Justicia candicans var. subglabra (S. Watson) L.D. Benson – not accepted
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|
Nolina bigelovii var. parryi (S. Watson) L.D. Benson – not accepted
|
|
Platanus racemosa var. wiightii (S. Watson) L.D. Benson – not accepted
|
|
Platanus racemosa var. wrightii (S. Watson) L.D. Benson – not accepted
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|
Ranunculus adoneus var. alpinus (S. Watson) L.D. Benson – not accepted – alpine buttercup
|
|
Ranunculus orthorhynchus var. bloomeri (S. Watson) L.D. Benson – accepted – Bloomer's buttercup
|
|
Opuntia macrorhiza var. pottsii (Salm-Dyck) L.D. Benson – not accepted – twistspine pricklypear, grassland pricklypear, Potts pricklypear cactus
|
|
Acacia angustissima var. cuspidata (Schltdl.) L.D. Benson – not accepted
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|
Ranunculus glacialis var. camissonis (Schltdl.) L.D. Benson – accepted – glacier buttercup
|
|
Ranunculus glacialis var. chamissonis (Schltdl.) L.D. Benson – not accepted – glacier buttercup
|
|
Cereus eriophorus var. fragrans (Small ex Britton & Rose) L.D. Benson – not accepted – fragrant prickly-apple
|
|
Cereus gracilis var. simpsonii (Small ex Britton & Rose) L.D. Benson – not accepted – Simpson's prickly-apple
|
|
Cereus gracilis var. aboriginus (Small) L.D. Benson – not accepted
|
|
Cereus robinii var. deeringii (Small) L.D. Benson – not accepted – Deering's tree cactus
|
|
Opuntia compressa var. ammophila (Small) L.D. Benson – not accepted
|
|
Opuntia compressa var. austrina (Small) L.D. Benson – not accepted
|
|
Opuntia humifusa var. ammophila (Small) L.D. Benson – accepted – devil's-tongue
|
|
Ranunculus fascicularis var. cuneiformis (Small) L.D. Benson – not accepted – Kerr crowfoot
|
|
Ranunculus laxicaulis var. mississippiensis (Small) L.D. Benson – not accepted
|
|
Acacia constricta var. vernicosa (Standl.) L.D. Benson – not accepted
|
|
Aloysia gratissima var. schulziae (Standl.) L.D. Benson – accepted – bee blossum, whitebrush
|
|
Atriplex lentiformis var. griffithsii (Standl.) L.D. Benson – not accepted
|
|
Choisya dumosa var. arizonica (Standl.) L.D. Benson – accepted – starleaf, Arizona orange
|
|
Choisya dumosa var. mollis (Standl.) L.D. Benson – accepted – Mexican orange, zorillo
|
|
Echinocereus polyacanthus var. neomexicanus (Standl.) L.D. Benson – not accepted
|
|
Fagonia californica var. laevis (Standl.) L.D. Benson – not accepted
|
|
Fagonia californica var. longipes (Standl.) L.D. Benson – not accepted
|
|
Echinocereus fasciculatus var. bonkerae (Thornber & Bonker) L.D. Benson – not accepted
|
|
Echinocereus fendleri var. bonkerae (Thornber & Bonker) L.D. Benson – not accepted – pinkflower hedgehog cactus
|
|
Opuntia acanthocarpa var. thornberi (Thornber & Bonker) L.D. Benson – not accepted – Thornber's buckhorn cholla
|
|
Coryphantha dasyacantha var. varicolor (Tiegel) L.D. Benson – not accepted
|
|
Celtis laevigata var. reticulata (Torr.) L.D. Benson – not accepted – netleaf hackberry
|
|
Juglans microcarpa var. major (Torr.) L.D. Benson – not accepted
|
|
Juniperus californica var. osteosperma (Torr.) L.D. Benson – not accepted
|
|
Ranunculus uncinatus var. parviflorus (Torr.) L.D. Benson – not accepted – Idaho buttercup
|
|
Ranunculus aquatilis var. calvescens (W.B. Drew) L.D. Benson – not accepted
|
|
Ranunculus circinatus var. subrigidus (W.B. Drew) L.D. Benson – not accepted
|
|
Echinocereus enneacanthus var. brevispinus (W.O. Moore) L.D. Benson – not accepted – pitaya
|
|
Ancistrocactus tobuschii (W.T. Marshall) Backeb. ex L.D. Benson – not accepted – Tobusch fishhook cactus
|
|
Echinocereus reichenbachii var. chisoensis (W.T. Marshall) L.D. Benson – not accepted
|
|
Echinocereus reichenbachii var. chisosensis (W.T. Marshall) L.D. Benson – not accepted
|
|
Neolloydia erectocentra var. acunensis (W.T. Marshall) L.D. Benson – not accepted
|
|
Rhus virens var. choriophylla (Wooton & Standl.) L.D. Benson – accepted – Mearns' sumac, evergreen sumac
|
|
Trifolium willdenovii var. longicaule (Wooton & Standl.) L.D. Benson – not accepted
|
|
Trifolium willdenowii var. longicaule (Wooton & Standl.) L.D. Benson – not accepted
|
|
Trifolium wormskioldii var. longicaule (Wooton & Standl.) L.D. Benson – not accepted |
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