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521.0000 Family Orobanchaceae Vent.; Tabl. Règn. Vég. 2: 292 (1799), nom. cons.
95 genera, ca. 2150 spp. Phylogeny: McNeal et al. 2013, Pinto-Carrasco et al. 2017, Nickrent (2020)
Species listed in database: 2203; hybrids: 77
= Aeginetiaceae Livera; Ann. Roy. Bot. Gard. (Peradeniya) 10: 153 (1927)
= Buchneraceae Lilja; Skånes Fl., ed. 2: 979 (1870)
= Cyclocheilaceae Marais; Kew Bull. 35: 805 (1981)
= Euphrasiaceae Martinov; Tekhno-Bot. Slovar 239 (1820)
= Lindenbergiaceae Doweld; Tent. Syst. Pl. Vasc.: xlix (2001)
= Melampyraceae Rich. ex Hook. & Lindl.; Fl. Scot. 2: 213 (1821)
= Nesogenaceae Marais; Kew Bull. 35: 798 (1981)
= Pedicularidaceae Juss.; Gen. Pl. [Jussieu] 99 (1789)
= Phelypaeaceae Horan.; Prim. Lin. Syst. Nat. 73 (1834)
= Rhinanthaceae Vent.; Tabl. Règn. Vég. 2: 295 (1799)
521.0802 Genus Orthocarpus Nutt.; Gen. N. Amer. Pl. [Nuttall] 2: 56 (1818) s. str.
Distribution: W-North America
Species listed in database: 10
= Physocheilus Nutt. ex Benth.; Prodr. [A.P. de Candolle] 10: 536 (1846)
= Oncorhynchus Lehm.; Index Sem. (Hamburg) (1832)

Search for: Orthocarpus cuspidatus-subsp.-cuspidatus

Nothing found!
species :
Orthocarpus barbatus J.S.Cotton; Bull. Torrey Bot. Club 29: 574 (1902)
Name: Grand Coulee owl´s-clover
Distribution: Canada (British Columbia); USA (Washington State)
71 CDN 73 USA
species :
Orthocarpus bracteosus Benth.; Scroph. Ind. 13 (1835)
Name: Rosy owl´s-clover
Distribution: Canada (British Columbia); USA (California, Oregon, Washington State)
71 CDN 73 USA 76 USA
Synonyms: hidden
= Orthocarpus bracteosus var. albus D.D.Keck; Proc. Calif. Acad. Sci., Ser. 4, 16: 554 (1927)
species :
Orthocarpus cuspidatus Greene; Pittonia 4: 101 (1899)
Name: Siskiyou Mountain owl´s-clover (EN)
Distribution: USA (California, Oregon)
73 USA 76 USA
Synonyms: hidden
= Orthocarpus olympicus Elmer; Bot. Gaz. 36: 60 (1903)
= Orthocarpus pachystachyus var. cuspidatus (Greene) Jeps.; Man. Fl. Pl. Calif. [Jepson] 945 (1925)
variant :
var. copelandii (Eastw.) Tiehm; J. Bot. Res. Inst. Texas 17(1): 26 (2023)
Name: Copeland´s owl´s-clover (EN)
Distribution: USA (California, Oregon)
73 USA 76 USA
Synonyms: hidden
= Orthocarpus copelandii Eastw.; Bot. Gaz. 41: 288 (1906)
= Orthocarpus cuspidatus subsp. copelandii (Eastw.) T.I.Chuang & Heckard; Syst. Bot. 17(4): 576 (1992)
variant :
var. cryptanthus (Piper) Tiehm; J. Bot. Res. Inst. Texas 18(1): 15 (2024)
Name: Cryptantha owl´s-clover (EN)
Distribution: USA (California, Nevada, Oregon)
73 USA 76 USA
Synonyms: hidden
= Orthocarpus copelandii var. cryptanthus (Piper) D.D.Keck; Proc. Calif. Acad. Sci., Ser. 4, 16: 559 (1927)
= Orthocarpus cryptanthus Piper; Smithsonian Misc. Collect. 50: 200 (1907)
= Orthocarpus cuspidatus subsp. cryptanthus (Piper) T.I.Chuang & Heckard; Syst. Bot. 17(4): 576 (1992)
species :
Orthocarpus holmgreniorum (T.I.Chuang & Heckard) L.M.Schultz & F.J.Sm.; Madroño 65(1): 62 (2018)
Name: Noel´s owl´s-clover
Distribution: USA (Idaho, Utah)
73 USA 76 USA
Synonyms: hidden
= Orthocarpus tolmiei subsp. holmgreniorum T.I.Chuang & Heckard; Syst. Bot. 17(4): 565 (1992)
species :
Orthocarpus imbricatus Torr. ex S.Watson; Botany (Fortieth Parallel) 458 (1871)
Name: Mountain owl´s-clover
Distribution: Canada (British Columbia); USA (California, Oregon, Washington State)
71 CDN 73 USA 76 USA
Synonyms: hidden
= Orthocarpus tenuifolius A.Gray; Bot. California [W.H.Brewer] 1: 577 (1876)
species :
Orthocarpus luteus Nutt.; Gen. N. Amer. Pl. [Nuttall] 2: 57 (1818)
Name: Yellow owl´s-clover
Distribution: Canada (Alberta, British Columbia, Manitoba, Northern Territories, Ontario, Saskatchewan, Yukon); USA (Arizona, California, Colorado, Idaho, Minnesota, Montana, North Dakota, Nebraska, New Mexico, Nevada, Oregon, South Dakota, Utah, Washington State, Wyoming)
70 CDN 71 CDN 72 CDN 73 USA 74 USA 75 USA 76 USA 77 USA
Synonyms: hidden
= Orthocarpus strictus Benth.; Scroph. Ind. 12 (1835)
species :
Orthocarpus pachystachyus A.Gray; Syn. Fl. N. Amer. 2(1): 300 (1878)
Name: Shasta owl´s-clover
Distribution: USA (California: Siskiyou Co.)
76 USA
species :
Orthocarpus purpureoalbus S.Watson; Botany (Fortieth Parallel) 458 (1871)
Name: Purplewhite owl´s-clover
Distribution: USA (Arizona, Colorado, New Mexico, Nevada, Utah)
73 USA 76 USA 77 USA
species :
Orthocarpus tenuifolius (Pursh) Benth.; Scroph. Ind. 12, in nota (1835)
Name: Thinleaved owl´s-clover
Distribution: Canada (British Columbia); USA (Idaho, Montana, Oregon, Washington State, Wyoming)
71 CDN 73 USA
Synonyms: hidden
= Bartsia tenuifolia Pursh; Fl. Amer. Sept. [Pursh] 2: 429 (1813)
= Rhinanthus tenuifolius (Pursh) Poir.; Encycl. [J.Lamarck et al.], Suppl. 5: 624 (1817)
species :
Orthocarpus tolmiei Hook. & Arn.; Bot. Beechey Voy. 379 (1833)
Name: Tolmie´s owl´s-clover
Distribution: USA (Idaho, Utah, Wyoming)
73 USA 76 USA
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A complete, synonymic checklist of the Higher Plants of the World


Version 25.06 (June 15th, 2025)

Covering 356,645 accepted species,
8,788 hybrids, 48,065 accepted infraspecific taxa and 1,003,237 synonyms,
in total 1,416,735* names

[*about 25,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]


With complete, detailed distribution data (countries and regions) and literature references

Arranged in linear phylogenetic sequence reflecting true relationships

Fully searchable and continously updated

With 38,209 pictures of 15,787 species

Assembled through 40 years independently from other databases

In cooperation with Catalogue of Life