mountain agoseris
Agoseris aurantiaca (Hook.) Greene
Agoseris aurantiaca, commonly known as mountain agoseris, is a flowering plant in the Asteraceae family. It is native to western North America, occurring in 17 Canadian and U.S. provinces and states, including Alberta, California, and Washington. The species was first described in 1891. It is characterized by its rosette leaves and solitary flowering stems, with heads containing 15–200 flowers of various colors, including orange, pink, purple, red, yellow, or white.
Description
Agoseris aurantiaca is a herbaceous plant with a single flowering stem. Rosette leaves are linear-ovate or narrowly obovate, ranging from 7.0 to 38.0 cm in length, and may be pinnatifid, entire, or dentate. The peduncle is 8.0 to 80.0 cm long and can be glabrescent or villose. The involucre is cylindrical or campanulate, with ovate or obovate bracts. The corolla is ligulate, and the achenes are ribbed and beaked. The pappus is 9.0 to 15.0 mm long. This species is found in a wide range of habitats across western North America.
Other common names
Orange agoseris, Colorado plateau agoserismountain agoserisorange agoserisorange false-dandelionorange-flowered false-dandelion
Distribution
Alberta · Utah · California · Québec · New Mexico · Montana · Arizona · South Dakota · Oregon · Northwest Territories · Nevada · Idaho · Alaska · Yukon · Washington · British Columbia · Colorado · Wyoming · Northwest Territorie
Synonyms
Troximon gracilensTroximon purpureumAgoseris attenuataAgoseris gracilensAgoseris longirostrisAgoseris graminifoliaAgoseris nanaAgoseris prionophyllaMacrorhynchus aurantiacusAgoseris lackschewitziiTroximon aurantiacumAgoseris purpureaAgoseris roseataMicrorhynchus purpureusAgoseris subalpinaAgoseris gracilens subsp. gracilensAgoseris gracilenta var. gracilentaAgoseris aurantiaca subsp. aurantiacaAgoseris vulcanicaAgoseris gracilens var. gracilensAgoseris carneaTroximon gracilens var. gracilensAgoseris purpurea var. purpureaTroximon gracilens var. greeneiAgoseris gracilensAgoseris confinisAgoseris rostrataAgoseris arachnoideaAgoseris frondiferaTroximon arizonicum
