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Source: Gymnosperms of North America Update, database (version 2010)

ITIS records citing this source
 
 Kingdom Plantae
  Abies Mill. -- accepted -- fir
  Abies alba Mill. -- accepted -- silver fir
  Abies amabilis Douglas ex J. Forbes -- accepted -- cascade fir, lovely fir, Pacific silver fir, red fir, white fir
  Abies arizonica Merriam -- not accepted
  Abies balsamea (L.) Mill. -- accepted -- balsam fir
  Abies balsamea ssp. lasiocarpa (Hook.) B. Boivin -- not accepted
  Abies balsamea var. balsamea (L.) Mill. -- accepted -- balsam fir
  Abies balsamea var. fallax (Engelm.) B. Boivin -- not accepted
  Abies balsamea var. phanerolepis Fernald -- accepted
  Abies bifolia A. Murray -- not accepted -- Rocky Mountain alpine fir
  Abies bracteata (D. Don) D. Don ex Poit. -- accepted -- bristlecone fir, Santa Lucia fir, silver fir
  Abies concolor (Gordon & Glend.) Lindl. ex Hildebr. -- accepted -- balsam fir, Colorado fir, concolor fir, oyamel de California, silver fir, white balsam, white fir
  Abies concolor var. concolor (Gordon & Glend.) Lindl. ex Hildebr. -- accepted -- Rocky Mountain fir, Rocky Mountain white fir, white fir
  Abies concolor var. lowiana (Gordon & Glend.) Lemmon -- not accepted -- California white fir, Low's fir, Pacific white fir, white fir
  Abies concolor X Abies grandis -- accepted
  Abies douglassii var. macrocarpa Torr. -- not accepted
  Abies engelmannii Parry -- not accepted
  Abies excelsior Franco -- not accepted
  Abies fraseri (Pursh) Poir. -- accepted -- balsam fir, eastern fir, Fraser balsam fir, Fraser fir, southern balsam, southern fir
  Abies grandis (Douglas ex D. Don) Lindl. -- accepted -- giant fir, grand fir, lowland white fir, silver fir, white fir, yellow fir
  Abies grandis var. grandis (Douglas ex D. Don) Lindl. -- not accepted -- grand fir
  Abies grandis var. idahoensis Silba -- not accepted -- grand fir
  Abies guatemalensis Rehder -- accepted -- Guatemalan fir, oyamel de Guatemala, pinabete
  Abies guatemalensis var. guatemalensis Rehder -- not accepted
  Abies guatemalensis var. jaliscana Martínez -- not accepted
  Abies heterophylla Raf. -- not accepted
  Abies homolepis Siebold & Zucc. -- accepted -- Nikko fir
  Abies lasiocarpa (Hook.) Nutt. -- accepted -- balsam fir, Rocky Mountain fir, subalpine fir, western balsam fir, white balsam
  Abies lasiocarpa var. arizonica (Merriam) Lemmon -- accepted -- corkbark fir
  Abies lasiocarpa var. lasiocarpa (Hook.) Nutt. -- accepted -- subalpine fir
  Abies lowiana (Gordon) A. Murray -- accepted -- Sierra white fir, white fir
  Abies macrocarpa Vasey -- not accepted
  Abies magnifica A. Murray -- accepted -- California red fir, golden fir, Shasta fir, Shasta red fir, silvertip fir
  Abies magnifica var. magnifica A. Murray -- not accepted
  Abies magnifica var. shastensis Lemmon -- not accepted
  Abies mariana Mill. -- not accepted
  Abies menziesii Mirb. -- not accepted
  Abies nobilis (Douglas ex D. Don) Lindl. -- not accepted
  Abies procera Rehder -- accepted -- noble fir, red fir, white fir
  Abies subalpina Engelm. -- not accepted
  Abies veitchii Lindl. -- accepted -- Christmastree, Veitch fir
  Abies venusta (Douglas) K. Koch -- not accepted
  Abies X phanerolepis (Fernald) T.S. Liu -- not accepted -- fir
  Abies X shastensis (Lemmon) Lemmon -- accepted -- Shasta red fir
  Abietaceae -- not accepted
  Afrocarpus (J. Buchholz & E.G. Gray) C.N. Page -- accepted -- yellowwood
  Afrocarpus falcatus (Thunb.) C.N. Page -- accepted -- yellowwood
  Agathis Salisb. -- accepted -- agathis
  Agathis alba Rumph. ex Jeffrey -- not accepted
  Agathis australis (D. Don) Steud. -- accepted -- kauri
  Agathis dammara (Lamb.) Rich. -- accepted -- dammar pine
  Agathis robusta (C. Moore ex F. Muell.) F.M. Bailey -- accepted -- Queensland kauri
  Amentotaxus Pilg. -- accepted
  Amentotaxus argotaenia (Hance) Pilg. -- accepted
  Apinus albicaulis (Engelm.) Rydb. -- not accepted
  Apinus flexilis (E. James) Rydb. -- not accepted
  Araucaria Juss. -- accepted -- araucaria
  Araucaria angustifolia (Bertol.) Kuntze -- accepted -- Parana pine
  Araucaria araucana (Molina) K. Koch -- accepted -- monkey puzzle tree, monkeypuzzle tree
  Araucaria bidwillii Hook. -- accepted -- bunya bunya
  Araucaria columnaris (G. Forst.) Hook. -- accepted -- New Caledonia pine
  Araucaria cunninghamii Aiton ex D. Don -- accepted -- Moreton Bay pine
  Araucaria excelsa (Lamb.) R. Br. -- not accepted
  Araucaria heterophylla (Salisb.) Franco -- accepted -- Norfolk Island pine
  Araucaria imbricata Pav. -- not accepted
  Araucariaceae -- accepted
  Austrocedrus Florin & Boutelje -- accepted -- Chilean cedar
  Austrocedrus chilensis (D. Don) Pic. Serm. & Bizzarri -- accepted -- Chilean cedar
  Austrotaxus Compton -- accepted
  Austrotaxus spicata Compton -- accepted
  Biota orientalis (L.) Endl. -- not accepted
  Bowenia Hook. ex Hook. f. -- accepted
  Bowenia serrulata (W. Bull) Chamb. -- accepted
  Bowenia spectabilis Hook. ex Hook. f. -- accepted
  Callitris Vent. -- accepted -- cypress-pine
  Callitris columellaris auct. non F. Muell. -- not accepted
  Callitris columellaris F. Muell. -- accepted
  Callitris glauca R.T. Baker & H.G. Sm. -- not accepted
  Callitris glaucophylla J. Thomp. & L.A.S. Johnson -- accepted -- white cypress-pine
  Callitris hugelii auct. non (Carričre) Franco -- not accepted
  Callitris oblonga Rich. & A. Rich. -- accepted -- pigmy cypress-pine
  Callitris preissii Miq. -- accepted -- Rottnest Island pine
  Callitris robusta (A. Cunn. ex Parl.) R. Br. ex F.M. Bailey -- not accepted
  Callitropsis Oerst. -- accepted
  Callitropsis abramsiana (C.B. Wolf) D.P. Little -- accepted -- Santa Cruz cypress
  Callitropsis arizonica (Greene) D.P. Little -- accepted -- Arizona cypress
  Callitropsis bakeri (Jeps.) D.P. Little -- accepted -- Baker's cypress, Modoc cypress
  Callitropsis benthamii (Endl.) D.P. Little -- accepted -- Bentham cypress
  Callitropsis forbsii (Jeps.) D.P. Little -- accepted -- Tecate cypress
  Callitropsis glabra (Sudw.) D.P. Little -- accepted
  Callitropsis goveniana (Gordon) D.P. Little -- accepted -- Gowen cypress
  Callitropsis guadalupensis (S. Watson) D.P. Little -- accepted -- Guadeloupe cypress
  Callitropsis lusitanica (Mill.) D.P. Little -- accepted -- cedar-of-Goa, Mexican cypress, Portuguese cypress
  Callitropsis macnabiana (A. Murray) D.P. Little -- accepted -- MacNab's cypress
  Callitropsis macrocarpa (Hartw.) D.P. Little -- accepted -- Monterey cypress
  Callitropsis nevadensis (Abrams) D.P. Little -- accepted -- Paiute cypress
  Callitropsis nootkatensis (D. Don) D.P. Little -- accepted -- Alaska cedar
  Callitropsis pigmaea (Lemmon) D.P. Little -- accepted -- pygmy cypress
  Callitropsis sargentii (Jeps.) D.P. Little -- accepted -- Sargent's cypress
  Callitropsis stephensonii (C.B. Wolf) D.P. Little -- accepted -- Cuyamaca cypress
  Calocedrus Kurz -- accepted -- incense cedar
  Calocedrus decurrens (Torr.) Florin -- accepted -- incense cedar
  Caryopitys monophylla (Torr. & Frém.) Rydb. -- not accepted
  Cedrus Trew -- accepted -- cedar
  Cedrus deodara (Roxb. ex D. Don) G. Don -- accepted -- Deodar cedar
  Cedrus libani A. Rich. -- accepted -- cedar of Lebanon, Cyprus cedar
  Cephalotaxaceae -- not accepted -- Plum-yew
  Cephalotaxus Siebold & Zucc. ex Endl. -- accepted -- cephalotaxus
  Cephalotaxus harringtonia (Knight ex J. Forbes) K. Koch -- accepted -- Harrington's cephalotaxus, Harrington's plum-yew, Japanese plum-yew
  Ceratozamia Brongn. -- accepted
  Ceratozamia alvarezii Pérez-Farr., Vovides & Iglesias -- accepted
  Ceratozamia becerrae Pérez-Farr., Vovides & Schutzman -- accepted
  Ceratozamia brevifrons Miq. -- accepted
  Ceratozamia chimalapensis Pérez-Farr. & Vovides -- accepted
  Ceratozamia decumbens Vovides, Avendańo, Pérez-Farr. & Gonz.-Astorga -- accepted
  Ceratozamia euryphyllidia Vázq. Torres, Sabato & D.W. Stev. -- accepted
  Ceratozamia fuscoviridis Moore -- accepted
  Ceratozamia hildae G.P. Landry & M.C. Wilson -- accepted
  Ceratozamia huastecorum Avendańo, Vovides & Cast.-Campos -- accepted
  Ceratozamia kuesteriana Regel -- accepted
  Ceratozamia latifolia Miq. -- accepted
  Ceratozamia matudae Lundell -- accepted
  Ceratozamia mexicana Brongn. -- accepted
  Ceratozamia microstrobila Vovides & J.D. Rees -- accepted
  Ceratozamia miqueliana H. Wendl. -- accepted
  Ceratozamia mirandae Vovides, Pérez-Farr. & Iglesias -- accepted
  Ceratozamia mixeorum Chemnick, T.J. Greg. & Salas-Mor. -- accepted
  Ceratozamia morettii Vázq. Torres & Vovides -- accepted
  Ceratozamia norstogii D.W. Stev. -- accepted
  Ceratozamia robusta Miq. -- accepted
  Ceratozamia sabatoi Vovides, Vázq. Torres, Schutzman & Iglesias -- accepted
  Ceratozamia santillanii Pérez-Farr. & Vovides -- accepted
  Ceratozamia vovidesii Pérez-Farr. & Iglesias -- accepted
  Ceratozamia whitelockiana Chemnick & T.J. Greg. -- accepted
  Ceratozamia zaragozae Medellín-Leal -- accepted
  Ceratozamia zoquensis Pérez-Farr., Vovides & Iglesias -- not accepted
  Ceratozamia zoquorum Pérez-Farr., Vovides & Iglesias -- accepted
  Chamaecyparis Spach -- accepted -- cedar, false-cypress, faux-cypres, white cedar
  Chamaecyparis funebris (Endl.) Franco -- accepted -- Chinese weeping chamaecyparis, Chinese weeping-cypress, mourning-cypress
  Chamaecyparis henryae H.L. Li -- not accepted
  Chamaecyparis lawsoniana (A. Murray) Parl. -- accepted -- ginger-pine, Lawson cedar, Oregon cedar, Port Orford cedar, Port Orford white cedar
  Chamaecyparis nootkatensis (D. Don) Spach -- not accepted -- Alaska cedar, Alaska yellow-cedar, Alaska-cedar, Nootka cypress, Sitka cypress, yellow cypress
  Chamaecyparis obtusa (Siebold & Zucc.) Siebold & Zucc. ex Endl. -- accepted -- hinoki false cypress
  Chamaecyparis pisifera Siebold & Zucc. -- accepted -- Sawara cypress
  Chamaecyparis thyoides (L.) Britton, Sterns & Poggenb. -- accepted -- Atlantic white cedar, Atlantic white-cedar, southern white cedar, southern white-cedar
  Chamaecyparis thyoides var. henryae (H.L. Li) Little -- not accepted
  Chrysolarix amabilis (J. Nelson) H.E. Moore -- not accepted
  Cordaitales -- accepted
  Cordaitopsida -- not accepted
  Cryptomeria D. Don -- accepted -- Japanese cedar
  Cryptomeria japonica (L. f.) D. Don -- accepted -- Japanese cedar
  Cunninghamia R. Br. -- accepted -- cunninghamia
  Cunninghamia lanceolata (Lamb.) Hook. -- accepted -- Chinese fir
  Cupressaceae -- accepted -- cypress, redwood
  Cupressus L. -- accepted -- cypress
  Cupressus abramsiana C.B. Wolf -- not accepted -- Santa Cruz cypress, Santa Cruz Island cypress
  Cupressus arizonica Greene -- not accepted -- Arizona cypress, Arizona smooth cypress, cedro, cedro blanco, ciprés de Arizona, ciprés fibrosa, Cuyamaca cypress, Piute cypress
  Cupressus arizonica ssp. arizonica Greene -- not accepted -- Arizona cypress
  Cupressus arizonica ssp. nevadensis (Abrams) A.E. Murray -- not accepted -- Piute cypress
  Cupressus arizonica ssp. stephensonii (C.B. Wolf) R.M. Beauch. -- not accepted -- Cuyamaca cypress
  Cupressus arizonica var. bonita Lemmon -- not accepted
  Cupressus arizonica var. glabra (Sudw.) Little -- not accepted -- Arizona smooth cypress, cedro
  Cupressus arizonica var. nevadensis (Abrams) Little -- not accepted
  Cupressus arizonica var. stephensonii (C.B. Wolf) Little -- not accepted
  Cupressus atlantica Gaussen -- not accepted
  Cupressus bakeri Jeps. -- not accepted -- Baker's cypress, Modoc cypress
  Cupressus bakeri ssp. bakeri Jeps. -- not accepted -- Baker's cypress
  Cupressus bakeri ssp. matthewsii C.B. Wolf -- not accepted
  Cupressus cashmeriana Carričre -- accepted -- Kashmir cypress
  Cupressus disticha L. -- not accepted
  Cupressus dupreziana A. Camus -- not accepted
  Cupressus forbesii Jeps. -- not accepted -- ciprés negro, Forbes cypress, Tecate cypress
  Cupressus funebris Endl. -- not accepted
  Cupressus glabra Sudw. -- not accepted -- Arizona smooth cypress
  Cupressus goveniana Gordon -- not accepted -- Gowen cypress, Mendocino cypress
  Cupressus goveniana ssp. goveniana Gordon -- not accepted -- Gowen cypress
  Cupressus goveniana ssp. pygmaea (Lemmon) Bartel -- not accepted -- Mendocino cypress, pygmy cypress
  Cupressus goveniana var. abramsiana (C.B. Wolf) Little -- not accepted
  Cupressus goveniana var. pygmaea Lemmon -- not accepted
  Cupressus guadalupensis S. Watson -- not accepted -- ciprés brillante
  Cupressus guadalupensis ssp. forbesii (Jeps.) R.M. Beauch. -- not accepted
  Cupressus guadalupensis var. forbesii (Jeps.) Little -- not accepted
  Cupressus lawsoniana A. Murray -- not accepted
  Cupressus lusitanica Mill. -- not accepted
  Cupressus lusitanica var. benthamii (Endl.) Carričre -- not accepted
  Cupressus macnabiana A. Murray -- not accepted -- MacNab's cypress
  Cupressus macnabiana var. bakeri (Jeps.) Jeps. -- not accepted
  Cupressus macnabiana var. nevadensis (Abrams) Abrams -- not accepted
  Cupressus macrocarpa Hartw. ex Gordon -- not accepted -- ciprés Monterrey, Monterey cypress
  Cupressus nevadensis Abrams -- not accepted
  Cupressus nootkatensis D. Don -- not accepted
  Cupressus pygmaea (Lemmon) Sarg. -- not accepted -- pygmy cypress
  Cupressus sargentii Jeps. -- not accepted -- Sargent cypress, Sargent's cypress
  Cupressus sempervirens L. -- accepted -- Italian cypress
  Cupressus sempervirens var. atlantica (Gaussen) Silba -- accepted
  Cupressus sempervirens var. dupreziana (A. Camus) Silba -- accepted
  Cupressus stephensonii C.B. Wolf -- not accepted -- Cuyamaca cypress
  Cupressus thyoides L. -- not accepted
  Cupressus torulosa D. Don -- accepted -- Himalayan cypress
  Cupressus torulosa var. corneyana Carričre -- not accepted
  Cycadaceae -- accepted
  Cycas L. -- accepted -- cycad
  Cycas caffra Thunb. -- not accepted
  Cycas circinalis L. -- accepted -- queen sago
  Cycas circinalis var. circinalis L. -- not accepted
  Cycas revoluta Thunb. -- accepted -- sago palm
  Dacrycarpus (Endl.) de Laub. -- accepted -- dacrycarpus
  Dacrycarpus dacrydioides (A. Rich.) de Laub. -- accepted -- kahika
  Dacrydium Lamb. -- accepted -- pine
  Dacrydium cupressinum Sol. ex Lamb. -- accepted -- New Zealand red pine
  Dacrydium franklinii Hook. f. -- not accepted -- Huon pine
  Dion Lindl. -- not accepted
  Dion edule Lindl. -- not accepted
  Dioon Lindl. -- accepted
  Dioon angustifolium Miq. -- accepted
  Dioon argenteum T.J. Greg., Chemnick, Salas-Mor. & Vovides -- accepted
  Dioon califanoi De Luca & Sabato -- accepted
  Dioon caputoi De Luca, Sabato & Vázq. Torres -- accepted
  Dioon edule Lindl. -- accepted
  Dioon edule var. angustifolium (Miq.) A.E. Murray -- not accepted
  Dioon edule var. edule Lindl. -- not accepted
  Dioon holmgrenii De Luca, Sabato & Vázq. Torres -- accepted
  Dioon merolae De Luca, Sabato & Vázq. Torres -- accepted
  Dioon purpusii Rose -- accepted
  Dioon rzedowskii De Luca, A. Moretti, Sabato & Vázq. Torres -- accepted
  Dioon sonorense (De Luca, Sabato & Vázq. Torres) Chemnick, T.J. Greg. & Salas-Mor. -- accepted
  Dioon spinulosum Dyer ex Eichler -- accepted
  Dioon stevensonii Nic.-Mor. & Vovides -- accepted
  Dioon tomasellii De Luca, Sabato & Vázq. Torres -- accepted
  Encephalartos Lehm. -- accepted
  Encephalartos caffer (Thunb.) Lehm. -- accepted
  Encephalartos ferox G. Bertol. -- accepted -- Zululand cycad
  Encephalartos woodii Sander -- accepted -- Wood's cycad
  Ephedra L. -- accepted -- ephedra, jointfir, Mormon tea
  Ephedra altissima Desf. -- accepted -- high-climbing jointfir
  Ephedra antisyphilitica Berl. ex C.A. Mey. -- accepted -- clapweed, ephedra, erect ephedra
  Ephedra antisyphilitica var. brachycarpa Cory -- not accepted
  Ephedra aspera Engelm. ex S. Watson -- accepted -- aspera Mormon tea, boundary ephedra, Mormon tea, rough jointfir
  Ephedra californica S. Watson -- accepted -- California jointfir, California Mormon tea
  Ephedra californica var. californica S. Watson -- not accepted -- California jointfir
  Ephedra californica var. funerea (Coville & Morton) L.D. Benson -- not accepted
  Ephedra ciliata Fisch. ex C.A. Mey. -- accepted
  Ephedra clokeyi Cutler -- not accepted
  Ephedra coryi E.L. Reed -- accepted -- Cory's ephedra, Cory's jointfir, Navajo Mormon tea
  Ephedra coryi var. viscida Cutler -- not accepted
  Ephedra cutleri Peebles -- accepted -- Cutler's ephedra, Cutler's jointfir, Cutler's Mormon tea
  Ephedra distachya L. -- accepted -- jointfir, sea-grape
  Ephedra equisetina Bunge -- accepted -- ma huang, Mongolian ephedra
  Ephedra fasciculata A. Nelson -- not accepted -- Arizona ephedra, Arizona jointfir, desert Mormon tea
  Ephedra fasciculata var. clokeyi (Cutler) Clokey -- not accepted
  Ephedra fasciculata var. fasciculata A. Nelson -- not accepted -- Arizona jointfir
  Ephedra foliata Boiss. & Kotschy -- not accepted
  Ephedra fragilis Desf. -- accepted
  Ephedra funerea Coville & Morton -- accepted -- Death Valley ephedra, Death Valley jointfir, funera Mormon tea
  Ephedra gerardiana Wall. ex Stapf -- accepted -- Gerard's jointfir, Indian jointfir
  Ephedra nevadensis S. Watson -- accepted -- Nevada ephedra, Nevada jointfir, Nevada Mormon tea
  Ephedra nevadensis var. aspera (Engelm. ex S. Watson) L.D. Benson -- not accepted
  Ephedra nevadensis var. nevadensis S. Watson -- not accepted -- Nevada jointfir
  Ephedra pedunculata Engelm. ex S. Watson -- accepted -- vine ephedra, vine jointfir
  Ephedra reedii Cory -- not accepted
  Ephedra sinica Stapf -- accepted -- Chinese ephedra, Chinese joint-fir
  Ephedra torreyana S. Watson -- accepted -- Torrey's ephedra, Torrey's jointfir, Torrey's Mormon tea
  Ephedra torreyana var. powelliorum T. Wendt -- accepted -- Torrey's jointfir
  Ephedra torreyana var. torreyana S. Watson -- accepted -- Torrey's jointfir, Torrey's Mormon tea
  Ephedra trifurca Torr. ex S. Watson -- accepted -- longleaf ephedra, longleaf jointfir, longleaf Mormon tea
  Ephedra viridis Coville -- accepted -- green ephedra, green Mormon tea, Mormon tea
  Ephedra viridis var. viridis Coville -- not accepted -- Mormon tea
  Ephedra viridis var. viscida (Cutler) L.D. Benson -- not accepted
  Ephedra X arenicola Cutler -- accepted -- sand Mormon tea, sandy jointfir
  Ephedra X intermixta Cutler -- accepted -- intermixed jointfir
  Ephedraceae -- accepted
  Fitzroya Hook. f. ex Lindl. -- accepted
  Fitzroya cupressoides (Molina) I.M. Johnst. -- accepted -- alerce, Chilean false larch, Patagonian cypress
  Fitzroya patagonica Hook. f. ex Lindl. -- not accepted
  Ginkgo L. -- accepted -- ginkgo
  Ginkgo biloba L. -- accepted -- common ginkgo, maidenhair tree
  Ginkgoaceae -- accepted
  Ginkgoales -- accepted
  Gnetaceae -- accepted
  Gnetum L. -- accepted -- jointfir
  Gnetum africanum Welw. -- accepted -- African jointfir
  Gnetum buchholzianum Engl. -- accepted -- jointfir
  Gnetum gnemon L. -- accepted -- buko
  Hesperopeuce mertensiana (Bong.) Rydb. -- not accepted
  Heyderia decurrens (Torr.) K. Koch -- not accepted
  Juniperus L. -- accepted -- cedar, cedro, juniper, redcedar, sabino
  Juniperus alpina (Sm.) Gray -- not accepted
  Juniperus angosturana R.P. Adams -- accepted -- oneseed juniper
  Juniperus ashei J. Buchholz -- accepted -- Ashe juniper, Ashe's juniper, enebro de monte
  Juniperus barbadensis sensu C. Mohr, non L. -- not accepted
  Juniperus californica Carričre -- accepted -- California juniper, enebro de california
  Juniperus californica ssp. osteosperma (Torr.) A.E. Murray -- not accepted
  Juniperus californica var. osteosperma (Torr.) L.D. Benson -- not accepted
  Juniperus californica var. siskiyouensis L.F. Hend. -- not accepted
  Juniperus californica var. utahensis Engelm. -- not accepted
  Juniperus canadensis Lodd. ex Burgsd. -- not accepted
  Juniperus cedrosiana Kellogg -- not accepted
  Juniperus cedrus Webb & Berthel. -- accepted -- Canary Islands juniper
  Juniperus cerrosianus Kellogg -- not accepted
  Juniperus chinensis L. -- accepted -- Chinese juniper
  Juniperus chinensis var. sargentii A. Henry -- accepted -- Sargent juniper
  Juniperus coahuilensis (Martínez) Gaussen ex R.P. Adams -- accepted -- redberry juniper
  Juniperus coahuilensis var. arizonica R.P. Adams -- accepted -- redberry juniper
  Juniperus coahuilensis var. coahuilensis (Martínez) Gaussen ex R.P. Adams -- accepted -- redberry juniper
  Juniperus communis L. -- accepted -- common juniper, dwarf juniper, genévrier commun
  Juniperus communis ssp. alpina (Sm.) Celak. -- not accepted
  Juniperus communis ssp. depressa (Pursh) Franco -- not accepted
  Juniperus communis ssp. nana (Willd.) Syme -- not accepted
  Juniperus communis ssp. saxatilis (Pall.) A.E. Murray -- not accepted
  Juniperus communis ssp. saxitilis (Pall.) A.E. Murray -- not accepted
  Juniperus communis var. alpina Sm. -- not accepted
  Juniperus communis var. communis L. -- accepted -- common juniper
  Juniperus communis var. depressa Pursh -- accepted -- common juniper
  Juniperus communis var. jackii Rehder -- not accepted
  Juniperus communis var. megistocarpa Fernald & H. St. John -- accepted -- common juniper
  Juniperus communis var. montana Aiton -- accepted -- common juniper
  Juniperus communis var. saxatilis Pall. -- not accepted
  Juniperus conferta Parl. -- accepted -- shore juniper
  Juniperus deppeana Steud. -- accepted -- alligator juniper, checker bark juniper, enebro chino
  Juniperus deppeana ssp. sperryi (Correll) A.E. Murray -- not accepted
  Juniperus deppeana var. pachyphlaea (Torr.) Martínez -- not accepted -- enebro aborí
  Juniperus deppeana var. sperryi Correll -- not accepted
  Juniperus depressa (Pursh) Raf. -- not accepted
  Juniperus drupacea Labill. -- accepted -- Syrian juniper
  Juniperus erythrocarpa Cory -- not accepted
  Juniperus erythrocarpa auct. non Cory -- not accepted -- enebro agoriza, redberry juniper
  Juniperus erythrocarpa var. coahuilensis Martínez -- not accepted
  Juniperus excelsa M. Bieb. -- accepted -- Crimean juniper, Grecian juniper
  Juniperus flaccida Schltdl. -- accepted -- drooping juniper, enebro liso
  Juniperus flaccida var. gigantea (Roezl) Gaussen -- not accepted
  Juniperus foetidissima Willd. -- accepted -- stinking juniper
  Juniperus gigantea Roezl -- not accepted
  Juniperus gracilis Endl. -- not accepted
  Juniperus horizontalis Moench -- accepted -- creeping juniper, creeping-cedar, genévrier horizontal, Waukegan juniper
  Juniperus horizontalis var. douglasii Rehder in L.H. Bailey -- not accepted
  Juniperus horizontalis var. glauca Hornibr. -- not accepted
  Juniperus horizontalis var. variegata Beissn. -- not accepted
  Juniperus hudsonica Forbes -- not accepted
  Juniperus knightii A. Nelson -- not accepted
  Juniperus lucayana auct. non Britton -- not accepted
  Juniperus macrocarpa Sm. -- accepted -- large-berried juniper, plum juniper
  Juniperus megalocarpa Sudw. -- not accepted
  Juniperus mexicana Schltdl. & Cham. -- not accepted
  Juniperus monosperma (Engelm.) Sarg. -- accepted -- enebro de sombra, oneseed juniper
  Juniperus monosperma var. gracilis Martínez -- not accepted
  Juniperus monosperma var. knightii (A. Nelson) Lemmon -- not accepted
  Juniperus monosperma var. pinchotii (Sudw.) Melle -- not accepted
  Juniperus nana Willd. -- not accepted
  Juniperus occidentalis Hook. -- accepted -- western juniper
  Juniperus occidentalis ssp. australis Vasek -- not accepted
  Juniperus occidentalis var. australis (Vasek) A.H. Holmgren & N.H. Holmgren -- accepted -- Sierra juniper, western juniper
  Juniperus occidentalis var. conjungens Engelm. -- not accepted
  Juniperus occidentalis var. gymnocarpa Lemmon -- not accepted
  Juniperus occidentalis var. occidentalis Hook. -- accepted -- western juniper
  Juniperus occidentalis var. texana Vasey -- not accepted
  Juniperus occidentalis var. utahensis (Engelm.) Kent -- not accepted
  Juniperus osteosperma (Torr.) Little -- accepted -- Utah juniper
  Juniperus oxycedrus L. -- accepted -- cade juniper, enebro de bayas rojas, prickly juniper, redberry juniper
  Juniperus oxycedrus ssp. macrocarpa (Sm.) Ball -- not accepted
  Juniperus pachyderma Sitgr. -- not accepted
  Juniperus phoenicea L. -- accepted -- Phoenician juniper
  Juniperus phoenicea var. lycia Loisel. -- not accepted
  Juniperus pinchotii Sudw. -- accepted -- enebro de fruto rojo, Pinchot juniper, Pinchot's juniper, redberry juniper
  Juniperus pinchotii var. erythrocarpa (Cory) J. Silba -- not accepted
  Juniperus polycarpos K. Koch -- accepted -- eastern juniper
  Juniperus prostrata Pers. -- not accepted
  Juniperus pseudosabina Fisch. & C.A. Mey. -- accepted -- dwarf black juniper
  Juniperus pyriformis Lindl. -- not accepted
  Juniperus repens Nutt. -- not accepted
  Juniperus rigida Siebold & Zucc. -- accepted -- needle juniper, temple juniper
  Juniperus sabina L. -- accepted -- savin
  Juniperus sabinoides Sarg. -- not accepted
  Juniperus scopulorum Sarg. -- accepted -- enebro riparío, Rocky Mountain juniper
  Juniperus scopulorum var. columnaris Fassett -- not accepted
  Juniperus scopulorum var. patens Fassett -- not accepted
  Juniperus seravschanica Kom. -- not accepted
  Juniperus sibirica Burgsd. -- not accepted
  Juniperus silicicola (Small) L.H. Bailey -- not accepted
  Juniperus squamata Buch.-Ham. ex D. Don -- accepted -- flaky juniper, scaly-leaf Nepal juniper, single-seed juniper
  Juniperus texensis Van Melle -- not accepted
  Juniperus turkestanica Kom. -- not accepted
  Juniperus utahensis (Engelm.) Lemmon -- not accepted
  Juniperus utahensis var. megalocarpa (Sudw.) Sarg. -- not accepted
  Juniperus virginiana L. -- accepted -- eastern red-cedar, eastern redcedar, genévrier rouge, red cedar juniper
  Juniperus virginiana ssp. crebra (Fernald & Grisc.) A.E. Murray -- not accepted
  Juniperus virginiana ssp. scopulorum (Sarg.) A.E. Murray -- not accepted
  Juniperus virginiana ssp. silicicola (Small) A.E. Murray -- not accepted
  Juniperus virginiana var. crebra Fernald & Grisc. -- not accepted
  Juniperus virginiana var. montana Vasey -- not accepted
  Juniperus virginiana var. prostrata (Pers.) Torr. -- not accepted
  Juniperus virginiana var. scopulorum (Sarg.) Lemmon -- not accepted
  Juniperus virginiana var. silicicola (Small) J. Silba -- accepted -- coast juniper, coastal redcedar, southern red-cedar, southern redcedar
  Juniperus virginiana var. virginiana L. -- accepted -- cčdre rouge, eastern redcedar
  Juniperus wallichiana Hook. f. & Thomson ex Brandis -- accepted -- black juniper
  Juniperus X fassettii B. Boivin -- accepted -- Fassett's juniper
  Keteleeria Carričre -- accepted -- keteleeria
  Keteleeria evelyniana Mast. -- accepted -- Evelyn keteleeria
  Lagarostrobos Quinn -- accepted
  Lagarostrobos franklinii (Hook. f.) Quinn -- accepted -- Huon pine
  Larix Mill. -- accepted -- larch
  Larix alaskensis W. Wight -- not accepted
  Larix decidua Mill. -- accepted -- European larch
  Larix gmelinii (Rupr.) Rupr. -- accepted -- Dahurian larch
  Larix gmelinii var. japonica (Maxim. ex Regel) Pilg. -- accepted -- Kurile larch
  Larix kaempferi (Lam.) Carričre -- accepted -- Japanese larch
  Larix laricina (Du Roi) K. Koch -- accepted -- Alaskan larch, American larch, eastern larch, hackmatack, tamarack
  Larix laricina var. alaskensis (W. Wight) Raup -- not accepted
  Larix leptolepis (Siebold & Zucc.) Gordon -- not accepted
  Larix lyallii Parl. -- accepted -- subalpine larch, tamarack, timberline larch
  Larix occidentalis Nutt. -- accepted -- hackmatack, Montana larch, mountain larch, western larch, western tamarack
  Larix sibirica Ledeb. -- accepted -- Siberian larch
  Larix X marschlinsii Coaz -- accepted -- Dunkeld larch, hybrid larch
  Lepidozamia Regel -- accepted
  Lepidozamia hopei (W. Hill) Regel -- accepted
  Lepidozamia peroffskyana Regel -- accepted
  Libocedrus decurrens Torr. -- not accepted -- cedro de incienso
  Macrozamia Miq. -- accepted
  Macrozamia communis L.A.S. Johnson -- accepted -- burrawong
  Macrozamia spiralis (Salisb.) Miq. -- accepted
  Metasequoia Miki ex Hu & W.C. Cheng -- accepted -- dawn redwood
  Metasequoia glyptostroboides Hu & W.C. Cheng -- accepted -- dawn redwood
  Microcycas (Miq.) A. DC. -- accepted
  Microcycas calocoma (Miq.) A. DC. -- accepted
  Nageia coriacea (Rich.) Kuntze -- not accepted
  Phyllocladus Rich. ex Mirb. -- accepted -- phyllocladus
  Phyllocladus trichomanoides D. Don -- accepted -- celery pine
  Picea A. Dietr. -- accepted -- spruce
  Picea abies (L.) Karst. -- accepted -- Norway spruce
  Picea albertiana S. Br. -- not accepted
  Picea amabilis Douglas ex Loudon -- not accepted
  Picea australis Small -- not accepted
  Picea breweriana S. Watson -- accepted -- Brewer spruce, weeping spruce
  Picea canadensis (Mill.) Britton, Sterns & Poggenb. -- not accepted
  Picea canadensis var. glauca (Moench) Sudw. -- not accepted
  Picea engelmannii Parry ex Engelm. -- accepted -- Columbian spruce, Engelmann spruce, Engelmann's spruce, mountain spruce, silver spruce, white spruce
  Picea engelmannii ssp. mexicana (Martínez) P.A. Schmidt -- not accepted
  Picea engelmannii var. engelmannii Parry ex Engelm. -- accepted -- Engelmann spruce
  Picea engelmannii var. glabra Goodman -- not accepted
  Picea engelmannii var. mexicana (Martínez) Silba -- accepted
  Picea excelsa (Lam.) Link -- not accepted
  Picea glauca (Moench) Voss -- accepted -- Black Hills spruce, Canadian spruce, cat spruce, skunk spruce, western white spruce, white spruce
  Picea glauca ssp. engelmannii (Parry ex Engelm.) T.M.C. Taylor -- not accepted
  Picea glauca var. albertiana (S. Br.) Sarg. -- not accepted
  Picea glauca var. densata L.H. Bailey -- not accepted
  Picea glauca var. engelmannii (Parry ex Engelm.) B. Boivin -- not accepted
  Picea glauca var. porsildii Raup -- not accepted -- Porsild's spruce
  Picea glehnii (F. Schmidt) Mast. -- accepted -- Sakhalin spruce
  Picea lowiana Gordon -- not accepted
  Picea mariana (Mill.) Britton, Sterns & Poggenb. -- accepted -- black spruce, bog spruce, shortleaf black spruce, swamp spruce
  Picea mariana var. mariana (Mill.) Britton, Sterns & Poggenb. -- not accepted -- black spruce
  Picea mariana var. semiprostrata (Peck) Teeri -- not accepted -- black spruce
  Picea nigra (Aiton) Link -- not accepted
  Picea omorika (Pancic) Purk. -- accepted -- Serbian spruce
  Picea parryana Sarg. -- not accepted
  Picea pungens Engelm. -- accepted -- blue spruce, Colorado blue spruce, silver spruce
  Picea pungens f. argentea Beissn. -- not accepted
  Picea pungens var. glauca Regel -- not accepted
  Picea rubens Sarg. -- accepted -- red spruce
  Picea rubra (Du Roi) Link -- not accepted
  Picea sitchensis (Bong.) Carričre -- accepted -- coast spruce, Sitka spruce, tideland spruce, yellow spruce
  Picea smithiana (Wall.) Boiss. -- accepted -- morinda spruce
  Picea X lutzii Little -- accepted -- Lutz's spruce
  Pinaceae -- accepted -- pines
  Pinus L. -- accepted -- pine
  Pinus albicaulis Engelm. -- accepted -- scrub pine, white pine, whitebark pine
  Pinus amabilis Douglas -- not accepted
  Pinus apacheca Lemmon -- not accepted
  Pinus aristata Engelm. -- accepted -- bristlecone pine, foxtail pine, hickory pine
  Pinus aristata var. longaeva (D.K. Bailey) Little -- not accepted
  Pinus arizonica Engelm. -- accepted -- Arizona pine, pino de Arizona
  Pinus arizonica var. arizonica Engelm. -- accepted -- Arizona pine
  Pinus arizonica var. stormiae Martínez -- accepted -- Arizona pine, pino blanco
  Pinus armandii Franch. -- accepted -- Armand pine, Chinese white-pine
  Pinus attenuata Lemmon -- accepted -- chichonuda, knobcone pine
  Pinus australis Michx. f. -- not accepted
  Pinus ayacahuite C. Ehrenb. -- not accepted -- ayacahuite
  Pinus ayacahuite var. brachyptera Shaw -- not accepted
  Pinus ayacahuite var. reflexa (Engelm.) Voss -- not accepted
  Pinus ayacahuite var. strobiformis (Engelm.) Lemmon -- not accepted
  Pinus balfouriana Balf. -- accepted -- foxtail pine, foxtailed pine
  Pinus balfouriana ssp. austrina R.J. Mastrog. & J.D. Mastrog. -- accepted -- foxtail pine
  Pinus balfouriana ssp. balfouriana Balf. -- accepted -- foxtail pine
  Pinus balfouriana var. aristata (Engelm.) Engelm. -- not accepted
  Pinus balsamea L. -- not accepted
  Pinus banksiana Lamb. -- accepted -- black pine, gray pine, Hudson Bay pine, jack pine, scrub pine
  Pinus beardsleyi A. Murray -- not accepted
  Pinus benthamiana Hartw. -- not accepted
  Pinus brachyptera Engelm. -- not accepted
  Pinus bracteata D. Don -- not accepted
  Pinus brutia Ten. -- accepted -- Calabrian pine, Turkish pine
  Pinus brutia var. eldarica (Medw.) Silba -- accepted -- Afghan pine, Eilar pine
  Pinus bungeana Zucc. ex Endl. -- accepted -- Bunge's pine, lacebark pine
  Pinus californiarum D.K. Bailey -- not accepted -- California pine
  Pinus canadensis L. -- not accepted
  Pinus canariensis C. Sm. -- accepted -- Canary Island pine
  Pinus caribaea Morelet -- accepted -- Caribbean pine
  Pinus caribaea sensu Small, non Morelet -- not accepted -- Honduras pine
  Pinus cedrus L. -- not accepted
  Pinus cembra L. -- accepted -- Swiss stone pine
  Pinus cembra var. sibirica Loudon -- not accepted
  Pinus cembroides Zucc. -- accepted -- Mexican nut pine, Mexican pinyon, nut pine, pino pińonero, pińón de Orizaba, stone pine
  Pinus cembroides var. bicolor Little -- not accepted
  Pinus cembroides var. cembroides Zucc. -- not accepted -- Mexican pinyon
  Pinus cembroides var. edulis (Engelm.) Voss -- not accepted
  Pinus cembroides var. monophylla (Torr. & Frém.) Voss -- not accepted
  Pinus cembroides var. remota Little -- not accepted
  Pinus chiapensis (Martínez) Andresen -- not accepted -- pino de Chiapas
  Pinus chihuahuana Engelm. -- not accepted -- pino de Chihuahua
  Pinus clausa (Chapm. ex Engelm.) Vasey ex Sarg. -- accepted -- sand pine, scrub pine, spruce pine
  Pinus clausa ssp. immuginata (D.B. Ward) A.E. Murray -- not accepted
  Pinus clausa var. immuginata D.B. Ward -- not accepted
  Pinus contorta Douglas ex Loudon -- accepted -- lodgepole pine, scrub pine, shore pine, tamarack pine
  Pinus contorta ssp. bolanderi (Parl.) Critchfield -- not accepted -- Bolander's beach pine
  Pinus contorta ssp. contorta Douglas ex Loudon -- not accepted
  Pinus contorta ssp. latifolia (Engelm. ex S. Watson) Critchfield -- not accepted -- black pine, Rocky Mountain lodgepole pine
  Pinus contorta ssp. murrayana (Balf.) Critchfield -- not accepted -- Sierra lodgepole pine, tamarack pine
  Pinus contorta var. bolanderi (Parl.) Vasey -- accepted -- Bolander beach pine
  Pinus contorta var. contorta Douglas ex Loudon -- accepted -- beach pine, coast pine, lodgepole pine, shore pine
  Pinus contorta var. latifolia Engelm. ex S. Watson -- accepted -- lodgepole pine, Rocky Mountain lodgepole pine, tall lodgepole pine
  Pinus contorta var. murrayana (Balf.) Engelm. -- accepted -- Murray's lodgepole pine, Sierra lodgepole pine, tamarack pine
  Pinus coulteri D. Don -- accepted -- bigcone pine, Coulter pine, pino de brea, pitch pine
  Pinus culminicola var. discolor (D.K. Bailey & Hawksw.) Silba -- not accepted
  Pinus dammara Lamb. -- not accepted
  Pinus densa (Little & Dorman) Gaussen -- not accepted
  Pinus densa var. austrokeysensis Silba -- not accepted
  Pinus densiflora Siebold & Zucc. -- accepted -- Japanese red pine, Japanese umbrella pine, tanyosho pine
  Pinus discolor D.K. Bailey & Hawksw. -- accepted -- border pinyon, pińón de la frontera
  Pinus divaricata (Aiton) Sudw. -- not accepted
  Pinus divaricata var. hendersonii (Lemmon) B. Boivin -- not accepted
  Pinus divaricata var. latifolia (Engelm. ex S. Watson) B. Boivin -- not accepted
  Pinus douglasii Sabine ex D. Don -- not accepted
  Pinus echinata Mill. -- accepted -- Arkansas pine, shortleaf pine, shortleaf yellow pine, shortstraw pine, southern yellow pine, yellow pine
  Pinus edulis Engelm. -- accepted -- Colorado pinyon, nut pine, pińón de Colorado, pińon pine, pinyon, pinyon pine, two-leaf pinyon, two-needle pinyon, twoneedle pinyon
  Pinus edulis var. edulis Engelm. -- not accepted -- twoneedle pinyon
  Pinus edulis var. fallax Little -- not accepted
  Pinus eldarica Medw. -- not accepted
  Pinus elliottii Engelm. -- accepted -- slash pine
  Pinus elliottii var. austrokeysensis Silba -- not accepted -- Key pine
  Pinus elliottii var. densa Little & Dorman -- accepted -- Florida slash pine, South Florida slash pine
  Pinus elliottii var. elliottii Engelm. -- accepted -- Honduras pine
  Pinus engelmannii Carričre -- accepted -- Apache pine, Arizona longleaf pine, pino real
  Pinus flexilis E. James -- accepted -- limber pine, pino torcido, Rocky Mountain white pine
  Pinus flexilis var. reflexa Engelm. -- not accepted
  Pinus fraseri Pursh -- not accepted
  Pinus gerardiana Wall. ex D. Don -- accepted -- chilghoza pine, chilgoza pine, Gerard's pine
  Pinus glabra Walter -- accepted -- bottom white pine, cedar pine, spruce pine, Walter pine
  Pinus glauca Moench -- not accepted
  Pinus grandis Douglas ex D. Don -- not accepted
  Pinus greggii Engelm. ex Parl. -- accepted
  Pinus griffithii McClell. -- not accepted
  Pinus halepensis Mill. -- accepted -- aleppo pine
  Pinus heldreichii Christ -- accepted -- Bosnian pine
  Pinus heterophylla (Elliott) Sudw. -- not accepted
  Pinus inops var. clausa Chapm. ex Engelm. -- not accepted
  Pinus insignis Douglas ex Loudon -- not accepted
  Pinus jeffreyi Balf. -- accepted -- black pine, Jeffrey pine, Jeffrey's pine, pino negro
  Pinus johannis M.F. Robert -- accepted -- Johann's pine
  Pinus juarezensis Lanner -- not accepted -- pińón de California
  Pinus kochiana Klotzsch ex K. Koch -- accepted
  Pinus koraiensis Siebold & Zucc. -- accepted -- Chinese pinenut, Korean pine
  Pinus lambertiana Douglas -- accepted -- California sugar pine, pino de azúcar, sugar pine
  Pinus laricina Du Roi -- not accepted
  Pinus larix L. -- not accepted
  Pinus lasiocarpa Hook. -- not accepted
  Pinus latifolia Sarg. -- not accepted
  Pinus leiophylla Schiede & Deppe -- accepted -- Chihuahuan pine, pino prieto
  Pinus leiophylla var. chihuahuana (Engelm.) Shaw -- accepted -- Chihuahuan pine, pino real, yellow pine
  Pinus leiophylla var. leiophylla Schiede & Deppe -- accepted
  Pinus leucodermis Antoine -- not accepted -- Bosnian pine
  Pinus longaeva D.K. Bailey -- accepted -- Great Basin bristlecone pine
  Pinus massoniana Lamb. -- accepted -- Chinese red pine, Masson's pine, southern red pine
  Pinus maximartinezii Rzed. -- accepted -- maxipińon
  Pinus merkusii Jungh. & Vriese ex Vriese -- accepted -- Merkus pine
  Pinus mertensiana Bong. -- not accepted
  Pinus monophylla Torr. & Frém. -- accepted -- nut pine, one-leaf pine, pińón simple, singleleaf pinyon
  Pinus monophylla var. californiarum (D.K. Bailey) Silba -- accepted -- California pine
  Pinus monophylla var. fallax (Little) Silba -- accepted -- singleleaf pinyon
  Pinus monophylla var. monophylla Torr. & Frém. -- accepted -- singleleaf pinyon
  Pinus montana Mill. -- not accepted
  Pinus monticola Douglas ex D. Don -- accepted -- Idaho white pine, mountain white pine, silver pine, western white pine
  Pinus mugo Turra -- accepted -- mugo pine
  Pinus mugo var. pumilio (Haenke) Zenari -- not accepted -- dwarf mountain pine
  Pinus muricata D. Don -- accepted -- Bishop pine, pino peninsular, prickle-cone pine, Santa Cruz Island pine
  Pinus muricata var. borealis Axelrod ex Farjon -- not accepted -- Bishop pine
  Pinus muricata var. muricata D. Don -- not accepted -- Bishop pine
  Pinus muricata var. remorata (H. Mason) Silba -- not accepted -- Bishop pine
  Pinus muricata var. stantonii Axelrod ex Farjon -- not accepted -- Bishop pine
  Pinus murrayana Balf. -- not accepted
  Pinus nigra Arnold -- accepted -- Australian pine, Austrian pine, European black pine
  Pinus nigra ssp. laricio Maire -- not accepted -- Calabrian black pine, Corsican pine
  Pinus nigra ssp. pallasiana (Lamb.) Holmboe -- not accepted -- Crimean pine
  Pinus nigra var. austriaca (Hoess) Asch. & Graebn. -- not accepted
  Pinus nigra var. caramanica (Loudon) Rehder -- not accepted
  Pinus oocarpa Schiede ex Schltdl. -- accepted -- ocote chino, oocarpa pine, pino prieto
  Pinus pallasiana Lamb. -- not accepted
  Pinus palustris Mill. -- accepted -- longleaf pine
  Pinus parviflora Siebold & Zucc. -- accepted -- five-needle pine, Japanese white pine
  Pinus parviflora f. glauca Beissn. -- not accepted
  Pinus patula Schiede ex Schltdl. & Cham. -- accepted -- Mexican weeping pine, Pino colorado
  Pinus pentaphylla var. himekomatsu (Miyabe & Kudo) Koidz. -- not accepted
  Pinus peuce Griseb. -- accepted -- Balkan pine, Macedonian pine
  Pinus pinaster Aiton -- accepted -- cluster pine, maritime pine
  Pinus pinea L. -- accepted -- Italian stone pine
  Pinus ponderosa Douglas ex P. Lawson & C. Lawson -- accepted -- blackjack pine, bull pine, pinabete, ponderosa pine, rock pine, western yellow pine
  Pinus ponderosa ssp. arizonica (Engelm.) A.E. Murray -- not accepted
  Pinus ponderosa ssp. coulteri (D. Don) A.E. Murray -- not accepted
  Pinus ponderosa ssp. jeffreyi (Balf.) Engelm. -- not accepted
  Pinus ponderosa ssp. scopulorum (Engelm.) A.E. Murray -- not accepted -- Black Hills pondersosa pine, Rocky Mountain ponderosa pine
  Pinus ponderosa ssp. washoensis (H. Mason & Stockw.) A.E. Murray -- not accepted
  Pinus ponderosa var. arizonica (Engelm.) Shaw -- not accepted
  Pinus ponderosa var. benthamiana (Hartw.) Vasey -- accepted -- ponderosa pine
  Pinus ponderosa var. brachyptera (Engelm.) Lemmon -- accepted -- ponderosa pine
  Pinus ponderosa var. ponderosa Douglas ex P. Lawson & C. Lawson -- accepted -- ponderosa pine
  Pinus ponderosa var. scopulorum Engelm. -- accepted -- Black Hills ponderosa pine, interior pondersosa pine, ponderosa pine, Rocky Mountain ponderosa pine
  Pinus pumila (Pall.) Regel -- accepted -- dwarf Siberian pine, Japanese stone pine
  Pinus pungens Lamb. -- accepted -- hickory pine, prickley pine, Table Mountain pine
  Pinus quadrifolia Parl. ex Sudw. -- accepted -- four-needle pinyon, nut pine, Parry pinyon, pińón de California
  Pinus radiata D. Don -- accepted -- insignis pine, Monterey pine, pino quebradizo
  Pinus radiata var. binata auct. non (S. Watson) Lemmon -- not accepted
  Pinus reflexa (Engelm.) Engelm. -- not accepted
  Pinus remorata H. Mason -- not accepted
  Pinus remota (Little) D.K. Bailey & Hawksw. -- accepted -- papershell pinyon, pino de papel
  Pinus resinosa Aiton -- accepted -- Norway pine, red pine
  Pinus rigida Mill. -- accepted -- pin rigide, pitch pine
  Pinus rigida ssp. serotina (Michx.) R.T. Clausen -- not accepted
  Pinus sabiniana Douglas ex Douglas -- accepted -- bull pine, California foothill pine, digger pine, gray pine
  Pinus scopulorum (Engelm.) Lemmon -- not accepted
  Pinus serotina Michx. -- accepted -- marsh pine, pocosin pine, pond pine
  Pinus sibirica Du Tour -- accepted -- Siberian pine
  Pinus sitchensis Bong. -- not accepted
  Pinus sosnowskyi Nakai -- not accepted
  Pinus stankewiczii (Sukaczev) Fomin -- accepted
  Pinus strobiformis Engelm. -- accepted -- border limber pine, border white pine, Mexican white pine, southwestern white pine
  Pinus strobus L. -- accepted -- eastern white pine, northern white pine, soft pine, Weymouth pine, white pine
  Pinus strobus var. chiapensis Martínez -- not accepted
  Pinus strobus var. monticola (Douglas ex D. Don) Nutt. -- not accepted
  Pinus sylvestris L. -- accepted -- Scots pine
  Pinus tabuliformis Carričre -- accepted -- Chinese pine, southern Chinese pine
  Pinus taeda L. -- accepted -- loblolly pine
  Pinus thunbergiana Franco -- not accepted -- Japanese black pine
  Pinus thunbergii Parl. -- accepted -- Japanese black pine
  Pinus torreyana Parry ex Carričre -- accepted -- Del Mar pine, Soledad pine, Torrey pine
  Pinus torreyana ssp. insularis J.R. Haller -- accepted
  Pinus torreyana ssp. torreyana Parry ex Carričre -- accepted -- Torrey pine
  Pinus torreyana var. insularis (J.R. Haller) Silba -- not accepted -- Santa Cruz Island Torrey pine
  Pinus torreyana var. torreyana Parry ex Carričre -- not accepted -- Torrey pine
  Pinus uncinata Mill. ex Mirb. -- accepted -- mountain pine
  Pinus venusta Douglas -- not accepted
  Pinus virginiana Mill. -- accepted -- Jersey pine, scrub pine, Virginia pine
  Pinus wallichiana A.B. Jacks. -- accepted -- Bhutan pine, blue pine, Himalayan pine, Himalayan white pine
  Pinus washoensis H. Mason & Stockw. -- not accepted -- Washoe pine
  Pinus X attenuradiata Stockw. & Righter -- accepted
  Pinus X murraybanksiana Righter & Stockw. -- accepted -- Murraybanks' pine
  Pinus X rigitaeda Kartesz & Gandhi -- not accepted
  Pinus X sondereggeri H.H. Chapm. -- accepted
  Platycladus Spach -- accepted -- platycladus
  Platycladus orientalis (L.) Franco -- accepted -- oriental arborvitae
  Podocarpaceae -- accepted
  Podocarpus L'Hér. ex Pers. -- accepted -- plum pine
  Podocarpus argotaenia Hance -- not accepted
  Podocarpus coriaceus Rich. -- accepted -- yucca plum pine
  Podocarpus dacrydioides A. Rich. -- not accepted
  Podocarpus elongatus (Aiton) L'Hér. ex Pers. -- accepted
  Podocarpus macrophyllus (Thunb.) Sweet -- accepted -- yew plum pine
  Podocarpus macrophyllus var. macrophyllus (Thunb.) Sweet -- accepted
  Podocarpus macrophyllus var. maki Endl. -- accepted -- yew plum pine
  Podocarpus neriifolius D. Don -- accepted
  Podocarpus neriifolius var. degeneri N.E. Gray -- not accepted
  Podocarpus neriifolius var. neriifolius D. Don -- not accepted
  Podocarpus nubigenus Lindl. -- accepted -- Chilean podocarp
  Podocarpus totara G. Bennett ex D. Don -- accepted -- totara
  Pseudolarix Gordon -- accepted -- golden larch
  Pseudolarix amabilis (J. Nelson) Rehder -- accepted -- Chinese golden larch, golden larch
  Pseudolarix kaempferi (Lamb.) Gordon -- not accepted -- golden larch
  Pseudotaxus W.C. Cheng -- accepted
  Pseudotaxus chienii (W.C. Cheng) W.C. Cheng -- accepted -- white-berry yew
  Pseudotsuga Carričre -- accepted -- Douglas-fir
  Pseudotsuga douglasii (Sabine ex D. Don) Carričre -- not accepted
  Pseudotsuga flahaultii Flous -- not accepted -- Hayarín guayamé
  Pseudotsuga macrocarpa (Vasey) Mayr -- accepted -- bigcone Douglas-fir, bigcone spruce, hemlock
  Pseudotsuga menziesii (Mirb.) Franco -- accepted -- Douglas spruce, Douglas-fir, Oregon pine, red fir
  Pseudotsuga menziesii var. flahaultii (Flous) Silba -- not accepted
  Pseudotsuga menziesii var. glauca (Mayr) Franco -- accepted -- blue Douglas-fir, Colorado Douglas-fir, Douglas-fir, inland Douglas-fir, Rocky Mountain Douglas-fir
  Pseudotsuga menziesii var. menziesii (Mirb.) Franco -- accepted -- coast Douglas-fir, Douglas-fir
  Pseudotsuga menziesii var. viridis (Schwer.) Franco -- not accepted
  Pseudotsuga mucronata (Raf.) Sudw. -- not accepted
  Pseudotsuga taxifolia (Lamb.) Britton -- not accepted
  Pseudotsuga taxifolia var. glauca (Beissn.) Sudw. -- not accepted
  Sabina californica (Carričre) Antoine -- not accepted
  Sabina flaccida (Schltdl.) Antoine -- not accepted
  Sabina horizontalis (Moench) Rydb. -- not accepted
  Sabina monosperma (Engelm.) Rydb. -- not accepted
  Sabina occidentalis (Hook.) A. Heller -- not accepted
  Sabina osteosperma (Torr.) Antoine -- not accepted
  Sabina prostrata (Pers.) Antoine -- not accepted
  Sabina scopulorum (Sarg.) Rydb. -- not accepted
  Sabina silicicola Small -- not accepted
  Sabina utahensis (Engelm.) Rydb. -- not accepted
  Sabina virginiana (L.) Antoine -- not accepted
  Saxegothaea Lindl. -- accepted
  Saxegothaea conspicua Lindl. -- accepted -- Prince Albert's yew
  Sequoia Endl. -- accepted -- redwood
  Sequoia gigantea (Lindl.) Decne. -- not accepted
  Sequoia sempervirens (Lamb. ex D. Don) Endl. -- accepted -- California redwood, coast redwood, redwood
  Sequoia wellingtonia Seem. -- not accepted
  Sequoiadendron J. Buchholz -- accepted -- giant sequoia
  Sequoiadendron giganteum (Lindl.) J. Buchholz -- accepted -- giant redwood, giant sequoia, Sierra redwood
  Stangeria T. Moore -- accepted
  Stangeria eriopus (Kunze) Baill. -- accepted
  Stangeria paradoxa T. Moore -- not accepted
  Stangeriaceae -- not accepted
  Strobus monticola (Douglas ex D. Don) Rydb. -- not accepted
  Strobus strobus (L.) Small -- not accepted
  Taxaceae -- accepted -- yews
  Taxodiaceae -- not accepted
  Taxodium Rich. -- accepted -- bald cypress, cypress
  Taxodium ascendens Brongn. -- not accepted -- pond cypress, pondcypress
  Taxodium distichum (L.) Rich. -- accepted -- bald cypress, baldcypress
  Taxodium distichum var. distichum (L.) Rich. -- accepted -- baldcypress
  Taxodium distichum var. imbricarium (Nutt.) Croom -- accepted
  Taxodium distichum var. nutans (Aiton) Sweet -- not accepted
  Taxodium mucronatum Ten. -- accepted -- ahuehuetes, Mexican cypress, Montezuma bald cypress, Montezuma baldcypress, sabino
  Taxodium sempervirens D. Don -- not accepted
  Taxus L. -- accepted -- yew
  Taxus baccata L. -- accepted -- English yew, European yew
  Taxus baccata var. aurea Carričre -- not accepted
  Taxus baccata var. fastigiata (Lindl.) Loudon -- not accepted
  Taxus baccata var. fastigiata-aurea Sénécl. -- not accepted
  Taxus baccata var. washingtonii (R. Sm.) Beissn. -- not accepted
  Taxus brevifolia Nutt. -- accepted -- Pacific yew
  Taxus canadensis Marsh. -- accepted -- Canada yew
  Taxus chienii W.C. Cheng -- not accepted
  Taxus cuspidata Siebold & Zucc. -- accepted -- Japanese yew
  Taxus elongata Aiton -- not accepted
  Taxus floridana Nutt. ex Chapm. -- accepted -- Florida yew
  Taxus X media Rehder -- accepted -- hybrid yew
  Tetraclinis Mast. -- accepted -- tetraclinis
  Tetraclinis articulata (Vahl) Mast. -- accepted -- arar tree
  Thuja L. -- accepted -- arborvitae, cčdre, red cedar, thuya
  Thuja occidentalis L. -- accepted -- arborvitae, cčdre-thuya occidental, eastern white cedar, northern white cedar, swamp cedar, thuier cčdre
  Thuja occidentalis f. malonyana C.K. Schneid. -- not accepted
  Thuja occidentalis var. fastigiata H. Jaeger -- not accepted
  Thuja occidentalis var. nigra L.H. Bailey -- not accepted
  Thuja occidentalis var. pyramidalis Zederb. -- not accepted
  Thuja orientalis L. -- not accepted -- Chinese arborvitae, oriental arborvitae
  Thuja orientalis var. aurea (Carričre) Rehder -- not accepted
  Thuja plicata Donn ex D. Don -- accepted -- western red cedar, western redcedar
  Torreya Arn. -- accepted -- torreya
  Torreya californica Torr. -- accepted -- California nutmeg, California torreya
  Torreya nucifera (L.) Siebold & Zucc. -- accepted -- Japanese torreya
  Torreya taxifolia Arn. -- accepted -- Florida nutmeg, Florida torreya
  Tsuga Carričre -- accepted -- hemlock
  Tsuga canadensis (L.) Carričre -- accepted -- Canada hemlock, eastern hemlock, hemlock spruce
  Tsuga caroliniana Engelm. -- accepted -- Carolina hemlock
  Tsuga douglasii var. glauca Beissn. -- not accepted
  Tsuga heterophylla (Raf.) Sarg. -- accepted -- Pacific hemlock, West Coast hemlock, western hemlock
  Tsuga mertensiana (Bong.) Carričre -- accepted -- alpine hemlock, black hemlock, hemlock spruce, mountain hemlock
  Tsuga X jeffreyi (Henry) Henry -- accepted -- Jeffrey hemlock
  Tumion taxifolium (Arn.) Greene -- not accepted
  Wellingtonia gigantea Lindl. -- not accepted
  Welwitschia Hook. f. -- accepted
  Welwitschia mirabilis Hook. f. -- accepted
  Welwitschiaceae -- accepted
  Welwitschiales -- not accepted -- welwitschia
  X Cupressocyparis Dallim. -- not accepted
  X Cupressocyparis leylandii (A.B. Jacks. & Dallim.) Dallim. -- not accepted
  Zamia L. -- accepted
  Zamia amblyphyllidia D.W. Stev. -- not accepted
  Zamia angustifolia Jacq. -- accepted
  Zamia cremnophila Vovides, Schutzman & Dehgan -- accepted
  Zamia debilis L. f. -- not accepted
  Zamia erosa O.F. Cook & G.N. Collins -- accepted
  Zamia fischeri Miq. -- accepted
  Zamia floridana A. DC. -- not accepted
  Zamia furfuracea L. f. -- accepted -- cardboard palm
  Zamia herrerae S. Calderón & Standl. -- accepted
  Zamia inermis Vovides, J.D. Rees & Vázq. Torres -- accepted
  Zamia integrifolia L. f. -- accepted
  Zamia katzeriana (Regel) E. Rettig -- accepted
  Zamia lacandona Schutzman & Vovides -- accepted
  Zamia latifoliolata Prenlel. -- not accepted
  Zamia loddigesii Miq. -- accepted
  Zamia media Jacq. -- not accepted
  Zamia paucijuga Wieland -- accepted
  Zamia polymorpha D.W. Stev., A. Moretti & Vázq. Torres -- not accepted
  Zamia portoricensis Urb. -- accepted
  Zamia pumila L. -- accepted -- coontie
  Zamia pumila ssp. pumila L. -- not accepted -- coontie
  Zamia pumila ssp. pygmaea (Sims) Eckenw. -- not accepted
  Zamia purpurea Vovides, J.D. Rees & Vázq. Torres -- accepted
  Zamia silvicola Small -- not accepted
  Zamia soconuscensis Schutzman, Vovides & Dehgan -- accepted
  Zamia spartea A. DC. -- accepted
  Zamia spiralis Salisb. -- not accepted
  Zamia umbrosa Small -- not accepted
  Zamia variegata Warsz. -- accepted
  Zamia vazquezii D.W. Stev., Sabato & De Luca -- accepted
  Zamiaceae -- accepted
   

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