| |
| Kingdom Plantae |
| |
Arctium L. -- accepted -- burdock, burrdock |
| |
Arctium lappa L. -- accepted -- greater burdock, woodland burdock, bardane, great burdock, greater burrdock |
| |
Arctium minus Bernh. -- accepted -- lesser burdock, lesser burrdock, burdock, small burdock, smaller burdock, bardane, beggar's button, common burdock, wild burdock, wild rhubarb |
| |
Arctium minus ssp. nemorosum (Lej. & Court.) Syme -- not accepted |
| |
Arctium nemorosum Lej. & Court. -- not accepted |
| |
Arctium tomentosum Mill. -- accepted -- woolly burdock, woolly burrdock |
| |
Arctium vulgare (Hill) Evans -- not accepted -- woodland burrdock |
| |
Arctium X mixtum Nyman -- accepted -- burrdock |
| |
Arctium X nothum (Ruhmer) J. Weiss -- accepted -- burrdock |
| |
Breea arvensis (L.) Less. -- not accepted |
| |
Breea incana (S.G. Gmel.) W.A. Weber -- not accepted |
| |
Carduus altissimus L. -- not accepted |
| |
Carduus americanus (A. Gray) Rydb. -- not accepted |
| |
Carduus araneosus Osterh. -- not accepted |
| |
Carduus arvensis (L.) Robson -- not accepted |
| |
Carduus austrinus Small -- not accepted |
| |
Carduus carolinianus Walter -- not accepted |
| |
Carduus coloradensis Rydb. -- not accepted |
| |
Carduus discolor (Muhl. ex Willd.) Nutt. -- not accepted |
| |
Carduus helenioides L. -- not accepted |
| |
Carduus helenoides L. orth. var. -- not accepted |
| |
Carduus helleri Small -- not accepted |
| |
Carduus inamoenus Greene -- not accepted |
| |
Carduus lanceolatus L. -- not accepted |
| |
Carduus lecontei (Torr. & A. Gray) Pollard -- not accepted |
| |
Carduus macounii Greene -- not accepted |
| |
Carduus muticus (Michx.) Pers. -- not accepted |
| |
Carduus nevadensis Greene -- not accepted |
| |
Carduus nuttallii (DC.) Pollard -- not accepted |
| |
Carduus pinetorum Small -- not accepted |
| |
Carduus pulchellus Greene -- not accepted |
| |
Carduus pumilus Nutt. -- not accepted |
| |
Carduus repandus (Michx.) Pers. -- not accepted |
| |
Carduus smallii (Britton) H.E. Ahles -- not accepted |
| |
Carduus spathulatus Osterh. -- not accepted |
| |
Carduus spinosissimus Walter -- not accepted |
| |
Carduus tracyi Rydb. -- not accepted |
| |
Carduus truncatus Greene -- not accepted |
| |
Carduus undulatus Nutt. -- not accepted |
| |
Carduus undulatus var. canescens (Nutt.) Porter -- not accepted |
| |
Carduus virginianus L. -- not accepted |
| |
Carduus vulgaris Savi -- not accepted |
| |
Chthonia glaucescens Cass. -- not accepted |
| |
Cirsium Mill. -- accepted -- thistle |
| |
Cirsium acanthodontum S.F. Blake -- not accepted |
| |
Cirsium acaule var. americanum A. Gray -- not accepted |
| |
Cirsium acaulescens (Rydb.) K. Schum. -- not accepted |
| |
Cirsium acuatum (Osterh.) Petr. -- not accepted |
| |
Cirsium altissimum (L.) Hill -- accepted -- tall thistle, roadside thistle |
| |
Cirsium altissimum var. biltmoreanum Petr. -- not accepted |
| |
Cirsium altissimum var. filipendulum (Engelm.) A. Gray -- not accepted |
| |
Cirsium amblylepis Petr. -- not accepted -- Mt. Tamalpais thistle |
| |
Cirsium americanum (A. Gray) K. Schum. -- not accepted |
| |
Cirsium andersonii (A. Gray) Petr. -- accepted -- rose thistle, Anderson's thistle |
| |
Cirsium andrewsii (A. Gray) Jeps. -- accepted -- Franciscan thistle |
| |
Cirsium araneans Rydb. -- not accepted -- jeweled thistle |
| |
Cirsium arcuum A. Nelson -- not accepted -- powderpuff thistle |
| |
Cirsium aridum Dorn -- not accepted -- desert thistle |
| |
Cirsium arizonicum (A. Gray) Petr. -- accepted -- Arizona thistle |
| |
Cirsium arizonicum var. arizonicum (A. Gray) Petr. -- accepted -- Arizona thistle |
| |
Cirsium arizonicum var. bipinnatum (Eastw.) D.J. Keil -- accepted -- Cainville thistle |
| |
Cirsium arizonicum var. chellyense (R.J. Moore & Frankton) D.J. Keil -- accepted -- Navajo thistle, queen thistle, monarch thistle |
| |
Cirsium arizonicum var. nidulum (M.E. Jones) S.L. Welsh -- not accepted -- Arizona thistle |
| |
Cirsium arizonicum var. rothrockii (A. Gray) D.J. Keil -- accepted -- Rothrock's thistle |
| |
Cirsium arizonicum var. tenuisectum D.J. Keil -- accepted -- desert mountains thistle |
| |
Cirsium arvense (L.) Scop. -- accepted -- Canada thistle, Canadian thistle, Californian thistle, creeping thistle, field thistle |
| |
Cirsium arvense var. argenteum (Vest) Fiori -- not accepted |
| |
Cirsium arvense var. horridum Wimm. & Grab. -- not accepted |
| |
Cirsium arvense var. integrifolium Wimm. & Grab. -- not accepted |
| |
Cirsium arvense var. mite Wimm. & Grab. -- not accepted |
| |
Cirsium arvense var. vestitum Wimm. & Grab. -- not accepted |
| |
Cirsium barnebyi S.L. Welsh & Neese -- accepted -- Barneby's thistle |
| |
Cirsium bigelovii DC. -- not accepted |
| |
Cirsium bipinnatum (Eastw.) Rydb. -- not accepted |
| |
Cirsium blumeri Petr. -- not accepted |
| |
Cirsium botrys Petr. -- not accepted |
| |
Cirsium brevifolium Nutt. -- accepted -- Palouse thistle |
| |
Cirsium brevistylum Cronquist -- accepted -- clustered thistle |
| |
Cirsium breweri (A. Gray) Jeps. -- not accepted |
| |
Cirsium breweri var. lanosissimum Petr. -- not accepted |
| |
Cirsium breweri var. wrangelii Petr. -- not accepted |
| |
Cirsium butleri (Rydb.) Petr. -- not accepted |
| |
Cirsium calcareum (M.E. Jones) Woot. & Standl. -- not accepted -- Cainville thistle |
| |
Cirsium calcareum var. bipinnatum (Eastw.) S.L. Welsh -- not accepted |
| |
Cirsium calcareum var. pulchellum (Greene) S.L. Welsh -- not accepted |
| |
Cirsium californicum A. Gray -- not accepted |
| |
Cirsium californicum ssp. pseudoreglense Petr. -- not accepted |
| |
Cirsium californicum var. bernardinum (Greene) Petr. -- not accepted |
| |
Cirsium californicum var. californicum A. Gray -- not accepted -- California thistle |
| |
Cirsium callilepis (Greene) Jeps. -- not accepted |
| |
Cirsium callilepis var. callilepis (Greene) Jeps. -- not accepted -- fringebract thistle |
| |
Cirsium callilepis var. oregonense (Petr.) J.T. Howell -- not accepted |
| |
Cirsium callilepis var. pseudocarlinoides (Petr.) J.T. Howell -- not accepted |
| |
Cirsium campylon H.K. Sharsmith -- not accepted |
| |
Cirsium candidissimum (Greene) Davidson & Moxley -- not accepted |
| |
Cirsium canescens Nutt. -- accepted -- prairie thistle, Platte thistle |
| |
Cirsium canovirens (Rydb.) Petr. -- not accepted -- graygreen thistle |
| |
Cirsium canum (L.) All. -- accepted -- Queen Anne's thistle |
| |
Cirsium carolinianum (Walter) Fernald & B.G. Schub. -- accepted -- soft thistle, Carolina thistle |
| |
Cirsium centaureae (Rydb.) K. Schum. -- not accepted |
| |
Cirsium chellyense J.W. Moore & Frankton -- not accepted -- queen thistle |
| |
Cirsium chuskaense J.W. Moore & Frankton -- not accepted -- monarch thistle |
| |
Cirsium ciliolatum (L.F. Hend.) J.T. Howell -- accepted -- Ashland thistle |
| |
Cirsium clavatum (M.E. Jones) Petr. -- accepted -- Fish Lake thistle |
| |
Cirsium clavatum var. americanum (A. Gray) D.J. Keil -- accepted -- Rocky Mountain fringed thistle, fringed thistle, lacy thistle, mountain slope thistle, porcupine thistle, crow thistle, gray thistle |
| |
Cirsium clavatum var. clavatum (M.E. Jones) Petr. -- accepted -- Fish Lake thistle |
| |
Cirsium clavatum var. osterhoutii (Rydb.) D.J. Keil -- accepted -- Osterhout's thistle, jeweled thistle |
| |
Cirsium clokeyi S.F. Blake -- not accepted -- whitespine thistle, Charleston Mountain thistle |
| |
Cirsium coccinatum Osterh. -- not accepted |
| |
Cirsium coloradense (Rydb.) Cockerell -- not accepted |
| |
Cirsium coloradense ssp. acaulescens (Rydb.) Petr. -- not accepted |
| |
Cirsium coloradense ssp. longissimum (A. Heller) Petr. -- not accepted |
| |
Cirsium congdonii J.W. Moore & Frankton -- not accepted -- rosette thistle |
| |
Cirsium coulteri Harv. & A. Gray -- not accepted |
| |
Cirsium crassicaule (Greene) Jeps. -- accepted -- slough thistle |
| |
Cirsium cymosum (Greene) J.T. Howell -- accepted -- peregrine thistle |
| |
Cirsium cymosum var. canovirens (Rydb.) D.J. Keil -- accepted -- graygreen thistle |
| |
Cirsium cymosum var. cymosum (Greene) J.T. Howell -- accepted -- peregrine thistle |
| |
Cirsium davisii Cronquist -- not accepted |
| |
Cirsium diffusum (Eastw.) Rydb. -- not accepted |
| |
Cirsium discolor (Muhl. ex Willd.) Spreng. -- accepted -- field thistle |
| |
Cirsium douglasii DC. -- accepted -- Douglas' thistle |
| |
Cirsium douglasii var. breweri (A. Gray) D.J. Keil & C.E. Turner -- accepted -- Douglas' thistle |
| |
Cirsium douglasii var. canescens (Petr.) J.T. Howell -- not accepted |
| |
Cirsium douglasii var. douglasii DC. -- accepted -- Douglas' thistle |
| |
Cirsium drummondii Torr. & A. Gray -- accepted -- dwarf thistle |
| |
Cirsium drummondii ssp. lanatum Petr. -- not accepted |
| |
Cirsium drummondii ssp. latisquamum Petr. -- not accepted |
| |
Cirsium drummondii ssp. vexans Petr. -- not accepted |
| |
Cirsium drummondii var. acaulescens (Rydb.) J.F. Macbr. -- not accepted |
| |
Cirsium drummondii var. oregonense Petr. -- not accepted |
| |
Cirsium eatonii (A. Gray) B.L. Rob. -- accepted -- Eaton's thistle, mountaintop thistle |
| |
Cirsium eatonii var. clokeyi (S.F. Blake) D.J. Keil -- accepted -- Clokey's thistle, Spring Mountains thistle, white-spine thistle |
| |
Cirsium eatonii var. eatonii (A. Gray) B.L. Rob. -- accepted -- Eaton's thistle, mountaintop thistle |
| |
Cirsium eatonii var. eriocephalum (A. Gray) D.J. Keil -- accepted -- mountain thistle, alpine thistle |
| |
Cirsium eatonii var. harrisonii S.L. Welsh -- not accepted |
| |
Cirsium eatonii var. hesperium (Eastw.) D.J. Keil -- accepted -- tall mountain thistle |
| |
Cirsium eatonii var. murdockii S.L. Welsh -- accepted -- northern mountain thistle, Murdock's thistle |
| |
Cirsium eatonii var. peckii (L.F. Hend.) D.J. Keil -- accepted -- Steens Mountain thistle, ghost thistle |
| |
Cirsium eatonii var. viperinum D.J. Keil -- accepted -- Snake Range thistle |
| |
Cirsium edule Nutt. -- accepted -- edible thistle, Hall's thistle, cardoon |
| |
Cirsium edule var. edule Nutt. -- accepted -- edible thistle, Hall's thistle |
| |
Cirsium edule var. macounii (Greene) D.J. Keil -- accepted -- Macoun's thistle |
| |
Cirsium edule var. wenatchense D.J. Keil -- accepted -- Wenatchee thistle |
| |
Cirsium engelmannii Rydb. -- accepted -- Engelmann's thistle |
| |
Cirsium eriocephalum A. Gray -- not accepted |
| |
Cirsium eriocephalum var. leiocephalum D.C. Eaton -- not accepted |
| |
Cirsium erosum (Rydb.) K. Schum. -- not accepted |
| |
Cirsium filipendulum Engelm. -- not accepted |
| |
Cirsium flaccidum Small -- not accepted |
| |
Cirsium floccosum (Rydb.) Petr. -- not accepted |
| |
Cirsium flodmanii (Rydb.) Arthur -- accepted -- Flodman's thistle |
| |
Cirsium foliosum (Hook.) DC. -- accepted -- elk thistle, Drummond's thistle, leafy thistle, meadow thistle |
| |
Cirsium foliosum var. minganense (Victorin) B. Boivin -- not accepted -- chardon multifeuille variété de la Minganie |
| |
Cirsium fontinale (Greene) Jeps. -- accepted -- fountain thistle |
| |
Cirsium fontinale var. campylon (H. Sharsm.) Pilz ex Keil & C. Turner -- accepted -- Mt. Hamilton thistle |
| |
Cirsium fontinale var. fontinale (Greene) Jeps. -- accepted -- fountain thistle |
| |
Cirsium fontinale var. obispoense J.T. Howell -- accepted -- Chorro Creek bog thistle |
| |
Cirsium gilense Woot. & Standl. -- not accepted -- Gila thistle |
| |
Cirsium grahamii A. Gray -- accepted -- Graham's thistle |
| |
Cirsium griseum (Rydb.) K. Schum. -- not accepted -- gray thistle |
| |
Cirsium hallii (A. Gray) M.E. Jones -- not accepted -- Hall's thistle |
| |
Cirsium helenioides (L.) Hill -- accepted -- melancholy thistle |
| |
Cirsium helleri (Small) Cory -- not accepted |
| |
Cirsium hesperium (Eastw.) Petr. -- not accepted |
| |
Cirsium heterophyllum (L.) Hill -- not accepted |
| |
Cirsium hillii (Canby) Fernald -- not accepted -- Hill's thistle |
| |
Cirsium hookerianum Nutt. -- accepted -- white thistle |
| |
Cirsium hookerianum var. eriocephalum (A. Gray) A. Nelson -- not accepted |
| |
Cirsium horridulum Michx. -- accepted -- yellow thistle |
| |
Cirsium horridulum var. elliottii Torr. & A. Gray -- not accepted |
| |
Cirsium horridulum var. horridulum Michx. -- accepted -- yellow thistle |
| |
Cirsium horridulum var. megacanthum (Nutt.) D.J. Keil -- accepted |
| |
Cirsium horridulum var. vittatum (Small) R.W. Long -- accepted -- yellow thistle |
| |
Cirsium howellii Petr. -- not accepted |
| |
Cirsium humboldtense Rydb. -- not accepted -- Humboldt County thistle |
| |
Cirsium hydrophilum (Greene) Jeps. -- accepted -- Suisun thistle |
| |
Cirsium hydrophilum var. hydrophilum (Greene) Jeps. -- accepted -- Suisun thistle |
| |
Cirsium hydrophilum var. vaseyi (A. Gray) J.T. Howell -- accepted -- Vasey's thistle |
| |
Cirsium inamoenum (Greene) D.J. Keil -- accepted |
| |
Cirsium inamoenum var. davisii (Cronquist) D.J. Keil -- accepted -- Davis' thistle |
| |
Cirsium inamoenum var. inamoenum (Greene) D.J. Keil -- accepted -- Greene's thistle, Jackson Hole thistle |
| |
Cirsium incanum (S.G. Gmel.) Fisch. ex M. Bieb. -- not accepted |
| |
Cirsium inornatum Woot. & Standl. -- not accepted -- Cloudcroft thistle |
| |
Cirsium japonicum Fisch. ex DC. -- accepted -- Japanese thistle |
| |
Cirsium joanne S.L. Welsh, N.D. Atwood & L.C. Higgins -- accepted -- Joanna's thistle |
| |
Cirsium kamtschaticum Ledeb. ex DC. -- accepted -- Kamchatka thistle |
| |
Cirsium kelseyi (Rydb.) Petr. -- not accepted |
| |
Cirsium lacerum (Rydb.) Petr. -- not accepted |
| |
Cirsium lactucinum Rydb. -- not accepted |
| |
Cirsium lanceolatum (L.) Scop., non Hill -- not accepted -- bull thistle |
| |
Cirsium lanceolatum var. hypoleucum DC. -- not accepted |
| |
Cirsium laterifolium (Osterh.) Petr. -- not accepted -- porcupine thistle |
| |
Cirsium lecontei Torr. & A. Gray -- accepted -- Le Conte's thistle |
| |
Cirsium loncholepis Petr. -- not accepted -- La Graciosa thistle |
| |
Cirsium longistylum J.W. Moore & Frankton -- accepted -- longstyle thistle |
| |
Cirsium macounii (Greene) Rydb. -- not accepted |
| |
Cirsium magnificum (A. Nelson) Petr. -- not accepted |
| |
Cirsium maritimum (Elmer) Petr. -- not accepted |
| |
Cirsium megacephalum (A. Gray) Cockerell -- not accepted |
| |
Cirsium mendocinum Petr. -- not accepted -- Mendocino thistle |
| |
Cirsium mexicanum DC. -- accepted -- Mexican thistle |
| |
Cirsium minganense Victorin -- not accepted |
| |
Cirsium modestum (Osterh.) Cockerell -- not accepted -- lacy thistle |
| |
Cirsium mohavense (Greene) Petr. -- accepted -- Mojave thistle, virgin thistle, Rusby's thistle |
| |
Cirsium montigenum Petr. -- not accepted |
| |
Cirsium murdockii (S.L. Welsh) Cronquist -- not accepted -- Murdock's thistle |
| |
Cirsium muticum Michx. -- accepted -- swamp thistle |
| |
Cirsium muticum var. monticola Fernald -- not accepted |
| |
Cirsium muticum var. subpinnatifidum (Britton) Fernald -- not accepted |
| |
Cirsium navajoense J.W. Moore & Frankton -- not accepted -- Navajo thistle |
| |
Cirsium nebraskense (Britton) Lunell -- not accepted |
| |
Cirsium nebraskense var. discissum Lunell -- not accepted |
| |
Cirsium nelsonii (Pammel) Petr. -- not accepted |
| |
Cirsium neomexicanum A. Gray -- accepted -- New Mexico thistle, powderpuff thistle, Utah thistle, lavender thistle |
| |
Cirsium neomexicanum var. neomexicanum A. Gray -- not accepted -- New Mexico thistle |
| |
Cirsium neomexicanum var. utahense (Petr.) S.L. Welsh -- not accepted -- Utah thistle |
| |
Cirsium nidulum (M.E. Jones) Petr. -- not accepted |
| |
Cirsium nuttallii DC. -- accepted -- Nuttall's thistle |
| |
Cirsium oblanceolatum (Rydb.) K. Schum. -- not accepted |
| |
Cirsium occidentale (Nutt.) Jeps. -- accepted -- cobwebby thistle |
| |
Cirsium occidentale var. californicum (A. Gray) Keil & C. Turner -- accepted -- cobwebby thistle |
| |
Cirsium occidentale var. candidissimum (Greene) J.F. Macbr. -- accepted -- snowy thistle |
| |
Cirsium occidentale var. compactum Hoover -- accepted -- compact cobwebby thistle |
| |
Cirsium occidentale var. coulteri (Harv. & A. Gray) Jeps. -- accepted -- Coulter's thistle |
| |
Cirsium occidentale var. lucianum D.J. Keil -- accepted -- Cuesta Ridge thistle |
| |
Cirsium occidentale var. occidentale (Nutt.) Jeps. -- accepted -- cobwebby thistle |
| |
Cirsium occidentale var. venustum (Greene) Jeps. -- accepted -- cobwebby thistle |
| |
Cirsium ochrocentrum A. Gray -- accepted -- yellowspine thistle |
| |
Cirsium ochrocentrum ssp. martinii P. Barlow -- accepted |
| |
Cirsium ochrocentrum ssp. ochrocentrum A. Gray -- accepted -- yellowspine thistle |
| |
Cirsium ochrocentrum var. helleri (Small) Petr. -- not accepted |
| |
Cirsium odoratum (Muhl. ex W. Bartram) Petr. -- not accepted |
| |
Cirsium olivescens (Rydb.) Petr. -- not accepted -- summer thistle |
| |
Cirsium oreganum Piper -- not accepted |
| |
Cirsium oreophilum (Rydb.) K. Schum. -- not accepted -- crow thistle |
| |
Cirsium osterhoutii (Rydb.) Petr. -- not accepted -- Osterhout's thistle |
| |
Cirsium ownbeyi S.L. Welsh -- accepted -- Ownbey's thistle |
| |
Cirsium pallidum Woot. & Standl. -- not accepted -- pale thistle |
| |
Cirsium palousense Piper -- not accepted |
| |
Cirsium palustre (L.) Scop. -- accepted -- marsh thistle |
| |
Cirsium parryi (A. Gray) Petr. -- accepted -- Parry's thistle, pale thistle, Cloudcroft thistle, Gila thistle, Mogollon thistle |
| |
Cirsium parryi ssp. mogollonicum C. Schaack & G. Goodwin -- not accepted -- Mogollon thistle |
| |
Cirsium parryi ssp. parryi (A. Gray) Petr. -- not accepted -- Parry's thistle |
| |
Cirsium pastoris J.T. Howell -- not accepted -- snowy thistle |
| |
Cirsium peckii L.F. Hend. -- not accepted -- Steens Mountain thistle |
| |
Cirsium perennans (Greene) Woot. & Standl. -- not accepted |
| |
Cirsium perplexans (Rydb.) Petr. -- accepted -- Rocky Mountain thistle, spring thistle |
| |
Cirsium pitcheri (Torr. ex Eaton) Torr. & A. Gray -- accepted -- sand dune thistle, Pitcher's thistle |
| |
Cirsium plattense (Rydb.) Cockerell ex Daniels -- not accepted |
| |
Cirsium polyphyllum (Rydb.) Petr. -- not accepted |
| |
Cirsium praeteriens J.F. Macbr. -- accepted -- Palo Alto thistle |
| |
Cirsium proteanum J.T. Howell -- not accepted |
| |
Cirsium pulchellum (Greene) Woot. & Standl. -- not accepted |
| |
Cirsium pulchellum ssp. bipinnatum (Eastw.) Petr. -- not accepted |
| |
Cirsium pulchellum ssp. diffusum (Eastw.) Petr. -- not accepted |
| |
Cirsium pulchellum var. glabrescens Petr. -- not accepted |
| |
Cirsium pulcherrimum (Rydb.) K. Schum. -- accepted -- Wyoming thistle |
| |
Cirsium pulcherrimum var. aridum (Dorn) D.J. Keil -- accepted -- Cedar Rim thistle, desert thistle |
| |
Cirsium pulcherrimum var. pulcherrimum (Rydb.) K. Schum. -- accepted -- Wyoming thistle |
| |
Cirsium pumilum Spreng. -- accepted -- pasture thistle |
| |
Cirsium pumilum ssp. hillii (Canby) J.W. Moore & Frankton -- not accepted |
| |
Cirsium pumilum var. hillii (Canby) B. Boivin -- accepted -- Hill's thistle |
| |
Cirsium pumilum var. pumilum Spreng. -- accepted -- pasture thistle |
| |
Cirsium pyrenaicum (Jacq.) All. -- accepted -- Pyrenean thistle |
| |
Cirsium quercetorum (A. Gray) Jeps. -- accepted -- Alameda County thistle |
| |
Cirsium quercetorum var. citrinum Petr. -- not accepted |
| |
Cirsium quercetorum var. mendocinum Petr. -- not accepted |
| |
Cirsium quercetorum var. quercetorum (A. Gray) Jeps. -- not accepted -- Alameda County thistle |
| |
Cirsium quercetorum var. walkerianum (Petr.) Jeps. -- not accepted -- Walker's thistle |
| |
Cirsium quercetorum var. xerolepis Petr. -- not accepted -- Alameda County thistle |
| |
Cirsium remotifolium (Hook.) DC. -- accepted -- fewleaf thistle |
| |
Cirsium remotifolium ssp. oregonense Petr. -- not accepted -- fewleaf thistle |
| |
Cirsium remotifolium ssp. pseudocarlinoides Petr. -- not accepted -- fewleaf thistle |
| |
Cirsium remotifolium ssp. remotifolium (Hook.) DC. -- not accepted -- fewleaf thistle |
| |
Cirsium remotifolium var. odontolepis Petr. -- accepted -- Pacific fringed thistle, fringe-scaled thistle, fewleaf thistle, Mt. Tamalpais thistle |
| |
Cirsium remotifolium var. remotifolium (Hook.) DC. -- accepted -- fewleaf thistle, remote-leaved thistle |
| |
Cirsium remotifolium var. rivulare Jeps. -- accepted -- Klamath thistle, Mendocino thistle |
| |
Cirsium repandum Michx. -- accepted -- sandhill thistle |
| |
Cirsium revolutum (Small) Petr. -- not accepted |
| |
Cirsium rhothophilum S.F. Blake -- accepted -- surf thistle |
| |
Cirsium rothrockii (A. Gray) Petr. -- not accepted -- Rothrock's thistle |
| |
Cirsium rusbyi (Greene) Petr. -- not accepted -- Rusby's thistle |
| |
Cirsium rydbergii Petr. -- accepted -- Rydberg's thistle |
| |
Cirsium scabrum (Poir.) Bonnet & Barratte -- accepted -- rough thistle |
| |
Cirsium scapanolepis Petr. -- not accepted -- mountain slope thistle |
| |
Cirsium scariosum Nutt. -- accepted -- meadow thistle |
| |
Cirsium scariosum var. americanum (A. Gray) D.J. Keil -- accepted -- dinnerplate thistle, sessile thistle, stemless thistle, Tioga thistle |
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Cirsium scariosum var. citrinum (Petr.) D.J. Keil -- accepted -- La Graciosa thistle |
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Cirsium scariosum var. coloradense (Rydb.) D.J. Keil -- accepted -- Colorado thistle, summer thistle, glory thistle |
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Cirsium scariosum var. congdonii (R.J. Moore & Frankton) D.J. Keil -- accepted -- rosette thistle |
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Cirsium scariosum var. robustum D.J. Keil -- accepted -- Shasta Valley thistle |
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Cirsium scariosum var. scariosum Nutt. -- accepted -- meadow thistle |
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Cirsium scariosum var. thorneae S.L. Welsh -- accepted -- meadow thistle |
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Cirsium scariosum var. toiyabense D.J. Keil -- accepted -- Toiyabe thistle |
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Cirsium scopulorum (Greene) Cockerell ex Daniels -- not accepted -- mountain thistle |
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Cirsium setosum (Willd.) Besser ex M. Bieb. -- not accepted |
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Cirsium smallii Britton -- not accepted |
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Cirsium spathulifolium Rydb. -- not accepted |
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Cirsium spinosissimum auct. non (L.) Scop. -- not accepted |
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Cirsium stenolepidum Nutt. -- not accepted |
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Cirsium subniveum Rydb. -- not accepted -- Jackson Hole thistle, gray thistle |
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Cirsium terraenigrae Shinners -- not accepted |
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Cirsium texanum Buckley -- accepted -- Texas thistle |
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Cirsium texanum var. stenolepis Shinners -- not accepted |
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Cirsium tioganum (Congd.) Petr. -- not accepted -- stemless thistle |
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Cirsium tioganum var. coloradense (Rydb.) Dorn -- not accepted -- Colorado thistle, stemless thistle |
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Cirsium tioganum var. tioganum (Congd.) Petr. -- not accepted -- Tioga thistle |
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Cirsium tracyi (Rydb.) Petr. -- accepted -- Tracy's thistle |
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Cirsium triacanthum Petr. -- not accepted |
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Cirsium turneri Warnock -- accepted -- cliff thistle |
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Cirsium tweedyi (Rydb.) Petr. -- not accepted |
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Cirsium tweedyi auct. non (Rydb.) Petr. -- not accepted |
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Cirsium undulatum (Nutt.) Spreng. -- accepted -- wavyleaf thistle, gray thistle, wavy-leaf thistle |
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Cirsium undulatum var. megacephalum (A. Gray) Fernald -- not accepted |
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Cirsium undulatum var. tracyi (Rydb.) S.L. Welsh -- not accepted -- Tracy's thistle, gray thistle, wavyleaf thistle |
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Cirsium undulatum var. undulatum (Nutt.) Spreng. -- accepted -- wavyleaf thistle, gray thistle, wavy-leaf thistle |
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Cirsium utahense Petr. -- not accepted |
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Cirsium validus Greene -- accepted -- graceful thistle |
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Cirsium vaseyi (A. Gray) Jeps. -- not accepted |
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Cirsium vaseyi var. hydrophilum (Greene) Petr. -- not accepted |
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Cirsium vernale (Osterh.) Cockerell -- not accepted -- spring thistle |
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Cirsium vinaceum Woot. & Standl. -- accepted -- Sacramento Mountains thistle |
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Cirsium virginense S.L. Welsh -- not accepted -- virgin thistle |
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Cirsium virginianum (L.) Michx. -- accepted -- Virginia thistle |
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Cirsium vittatum Small -- not accepted |
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Cirsium vulgare (Savi) Ten. -- accepted -- bull thistle, common thistle, spear thistle |
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Cirsium walkerianum Petr. -- not accepted |
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Cirsium wallowense M. Peck -- not accepted |
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Cirsium wheeleri (A. Gray) Petr. -- accepted -- Wheeler's thistle |
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Cirsium wrightii A. Gray -- accepted -- Wright's thistle, Wright's marsh thistle |
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Cirsium X canalense Petr. -- accepted -- canal thistle |
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Cirsium X crassum Petr. -- accepted -- thistle |
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Cirsium X erosum (Rydb.) K. Schum. (pro sp.) -- not accepted -- glory thistle |
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Cirsium X iowense (Pammel) Fernald (pro sp.) -- accepted -- Iowa thistle |
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Cirsium X vancouverense J.W. Moore & Frankton -- accepted -- Vancouver thistle |
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Cnicus amplifolius Greene -- not accepted |
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Cnicus arizonicus A. Gray -- not accepted |
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Cnicus breweri var. vaseyi A. Gray -- not accepted |
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Cnicus calcareus M.E. Jones -- not accepted |
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Cnicus drummondii var. acaulescens Rydb. -- not accepted |
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Cnicus ochrocentrus (A. Gray) A. Gray -- not accepted |
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Cnicus parryi A. Gray -- not accepted |
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Cnicus tioganus Congd. -- not accepted |
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Cnicus undulatus var. megacephalus A. Gray -- not accepted |
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Cnicus wheeleri A. Gray -- not accepted |
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Crepis occidentalis var. nevadensis Kellogg -- not accepted |
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Crupina (Pers.) DC. -- accepted -- crupina |
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Crupina vulgaris Cass. -- accepted -- common crupina, bearded creeper |
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Crupina vulgaris var. brachypappa P. Beauv. -- accepted |
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Crupina vulgaris var. vulgaris Cass. -- accepted -- common crupina |
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Lappa major Gaertn. -- not accepted |
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Lappa minor Hill -- not accepted |
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Pectis L. -- accepted -- chinchweed, fetid marigold, cinchweed, fetidmarigold |
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Pectis angustifolia Torr. -- accepted -- lemonscent, narrowleaf pectis |
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Pectis angustifolia var. angustifolia Torr. -- accepted -- narrowleaf pectis, lemonscent |
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Pectis angustifolia var. fastigiata (A. Gray) Keil -- accepted -- lemonscent |
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Pectis angustifolia var. tenella (DC.) Keil -- accepted -- lemonscent |
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Pectis carthusianorum Less. -- accepted -- Caribbean chinchweed, Caribbean cinchweed |
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Pectis ciliaris L. -- accepted -- donkeyweed |
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Pectis coulteri Harv. & A. Gray -- accepted -- Coulter's cinchweed |
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Pectis cylindrica (Fernald) Rydb. -- accepted -- Sonoran chinchweed, Sonoran cinchweed |
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Pectis elongata Kunth -- accepted -- tropical chinchweed, tropical cinchweed |
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Pectis elongata var. elongata Kunth -- accepted -- tropical chinchweed |
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Pectis elongata var. floribunda (A. Rich.) Keil -- accepted -- tropical chinchweed, tropical cinchweed |
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Pectis febrifuga H.C. Hall -- not accepted |
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Pectis filipes Harv. & A. Gray -- accepted -- fivebract chinchweed, fivebract cinchweed, five-bract cinchweed |
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Pectis filipes var. filipes Harv. & A. Gray -- accepted |
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Pectis filipes var. subnuda Fernald -- accepted -- fivebract chinchweed, fivebract cinchweed |
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Pectis floribunda A. Rich. -- not accepted |
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Pectis glaucescens (Cass.) Keil -- accepted -- sanddune chinchweed, sanddune cinchweed |
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Pectis humifusa Sw. -- accepted -- yerba de San Juan |
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Pectis imberbis A. Gray -- accepted -- beardless chinchweed, beardless cinchweed |
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Pectis leptocephala (Cass.) Urb. -- not accepted |
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Pectis linearifolia Urb. -- accepted -- Florida chinchweed, Florida cinchweed |
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Pectis linearis Llave -- accepted -- West Indian chinchweed, West Indian cinchweed |
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Pectis linifolia L. -- accepted -- romero macho, narrowleaf lemonweed |
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Pectis longipes A. Gray -- accepted -- longstalk chinchweed, mat cinchweed, longstalk cinchweed |
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Pectis multisetosa Rydb. -- not accepted |
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Pectis palmeri S. Watson -- not accepted |
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Pectis papposa Harv. & A. Gray -- accepted -- manybristle chinchweed, cinchweed, manybristle cinchweed, cinchweed fetidmarigold |
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Pectis papposa var. grandis Keil -- accepted -- manybristle chinchweed, manybristle cinchweed |
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Pectis papposa var. papposa Harv. & A. Gray -- accepted -- manybristle chinchweed, many-bristle cinchweed, manybristle cinchweed |
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Pectis portoricensis Urb. -- not accepted |
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Pectis postrata var. cylindrica Fernald -- not accepted |
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Pectis prostrata Cav. -- accepted -- spreading chinchweed, spreading cinchweed |
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Pectis prostrata var. cylindrica Fernald -- not accepted |
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Pectis prostrata var. urceolata Fernald -- not accepted |
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Pectis rusbyi Greene ex A. Gray -- accepted -- Rusby's chinchweed, Rusby's cinchweed |
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Pectis tenella DC. -- not accepted |
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Pectis tenuicaulis Urb. -- accepted -- island chinchweed, island cinchweed |
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Pectis texana Cory -- not accepted |
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Pectis X floridana Keil -- accepted -- hybrid Florida cinchweed |
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Serratula arvensis L. -- not accepted |
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