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Erigeron chrysopsidis : ウィキペディア英語版 | Erigeron chrysopsidis
''Erigeron chrysopsidis'' is a North American species of flowering plants in the daisy family known by the common name Dwarf yellow fleabane. It is found in the western United States: southeastern Washington, Oregon, extreme northern California, northern Nevada, Idaho.〔(Biota of north America Program 2014 county distribution map )〕〔(Calflora taxon report, University of California, ''Erigeron chrysopsidis'' A. Gray, dwarf yellow fleabane )〕 ''Erigeron chrysopsidis'' is a very small perennial herb up to 15 cm (8 inches) tall, forming a taproot. Most of the leaves are low and close to the ground. Each stem produces only one flower head, with 20-60 yellow ray florets plus numerous yellow disc florets.〔(Flora of North America, ''Erigeron chrysopsidis'' A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 210. 1884. Dwarf yellow fleabane )〕 ;Varieties〔〔 * ''Erigeron chrysopsidis'' var. ''austiniae'' (Greene) G.L.Nesom - California, Idaho, Nevada, Oregon * ''Erigeron chrysopsidis'' var. ''brevifolius'' Piper - Oregon * ''Erigeron chrysopsidis'' var. ''chrysopsidis'' - Oregon, Washington ==References==
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