Orobanchaceae
Castilleja pruinosa Fernald
Castilleja pruinosa Fernald
Castilleja pruinosa is a bushy perennial herb with colored bracts and greenish reddish-margined flowers, growing up to 80 cm tall.
Castilleja purpurea (Nutt.) G.Don
Castilleja purpurea (Nutt.) G.Don
Downy Indian paintbrush (Castilleja purpurea) is a variable North American wildflower whose subspecies are debated as separate species.
Castilleja rhexifolia Rydb.
Castilleja rhexifolia Rydb.
Castilleja rhexifolia Rydb., alpine paintbrush, is a perennial hemiparasitic paintbrush native to western North American mountains.
Castilleja rubicundula (Jeps.) T.I.Chuang & Heckard
Castilleja rubicundula (Jeps.) T.I.Chuang & Heckard
Castilleja rubicundula is an annual hairy wildflower native to grasslands of northern California and southwestern Oregon with colorful inflated flowers.
Castilleja scabrida Eastw.
Castilleja scabrida Eastw.
Castilleja scabrida, or rough paintbrush, is a vivid perennial wildflower native to five western US states, with good potential as a garden plant.
Castilleja septentrionalis Lindl.
Castilleja septentrionalis Lindl.
Castilleja septentrionalis is a parasitic perennial herb with pale inflorescences, widespread in northern North America.
Castilleja sessiliflora Pursh
Castilleja sessiliflora Pursh
Castilleja sessiliflora Pursh is a hemiparasitic perennial herb that is less dependent on hosts than other Castilleja, growing across several North American habitats.
Castilleja subinclusa Greene
Castilleja subinclusa Greene
Castilleja subinclusa (long leaf paintbrush) is a perennial hairy paintbrush native to California and northern Baja California, with multiple recognized varieties.
Castilleja tenuis (A.Heller) T.I.Chuang & Heckard
Castilleja tenuis (A.Heller) T.I.Chuang & Heckard
Castilleja tenuis is a hairy annual herb up to 45 cm tall with colored bracts and white to bright yellow pouched flowers.
Castilleja thompsonii Pennell
Castilleja thompsonii Pennell
Castilleja thompsonii is a hairy-stemmed herb with colored bracts, found in dry rocky open areas of British Columbia and Washington.
Castilleja wightii Elmer
Castilleja wightii Elmer
Castilleja wightii Elmer is a perennial herb native to coastal California, with bracts ranging in color from red to yellow.
Chloropyron maritimum (Nutt. ex Benth.) A.Heller
Chloropyron maritimum (Nutt. ex Benth.) A.Heller
Chloropyron maritimum is a hemiparasitic halophyte native to western North America, found in high-salt habitats.
Cistanche phelypaea (L.) Cout.
Cistanche phelypaea (L.) Cout.
Cistanche phelypaea is a chlorophyll-free obligate parasitic plant with yellow flowers, eaten as food, native across parts of Afro-Eurasia.
Conopholis alpina Liebm.
Conopholis alpina Liebm.
Alpine cancer-root (Conopholis alpina Liebm.) is an achlorophyllous holoparasitic root plant native to northern Mexico and the southwestern US.
Conopholis americana (L.) Wallr.
Conopholis americana (L.) Wallr.
Conopholis americana is an uncommon root-parasitic plant native to eastern North America, vulnerable or imperiled in some U.S. states.
Cordylanthus pilosus A.Gray
Cordylanthus pilosus A.Gray
Cordylanthus pilosus, hairy bird's beak, is an endemic annual flowering herb of northern California with three subspecies.
Cordylanthus rigidus (Benth.) Jeps.
Cordylanthus rigidus (Benth.) Jeps.
Cordylanthus rigidus, stiffbranch bird's beak, is a parasitic annual flowering plant native to California and northern Baja California.
Cordylanthus tenuis A.Gray
Cordylanthus tenuis A.Gray
Cordylanthus tenuis, or slender bird's beak, is a flowering Orobanchaceae native to western US woodlands and forests, with several subspecies.
Cordylanthus wrightii A.Gray
Cordylanthus wrightii A.Gray
Wright's birdbeak (Cordylanthus wrightii) is an annual Orobanchaceae plant native to the southwestern US.
Cymbaria daurica L.
Cymbaria daurica L.
The lectotype of Cymbaria daurica L. is the illustration "Cymbaria Daurica, pumila, incana, Linariae folio, magno flore luteo, guttato" in Amman, Stirp. Rar. Ruth. 36, t. 1, f. 2 (1739) as designated by Sutton in 1993.
Epifagus virginiana (L.) Barton
Epifagus virginiana (L.) Barton
Epifagus virginiana (beechdrops) is a chlorophyll-free parasitic plant that grows on beech tree roots in eastern North America.
Euphrasia collina R.Br.
Euphrasia collina R.Br.
Euphrasia collina R.Br. is a perennial herb/subshrub in Euphrasia, native to southeastern Australian states, found in habitats from coastal to alpine areas.
Euphrasia cuneata G.Forst.
Euphrasia cuneata G.Forst.
Euphrasia cuneata G.Forst. is a variable New Zealand-endemic perennial herb or subshrub found from coastal to subalpine habitats.
Euphrasia nemorosa (Pers.) Wallr.
Euphrasia nemorosa (Pers.) Wallr.
Common eyebright (Euphrasia nemorosa) is an annual hemiparasitic flowering plant native to Europe.
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