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''Psorothamnus'' is a genus of plants in the legume family. These are shrubs and small trees. Many are known by the general common name indigo bush. Some are referred to as daleas, as this genus was once included in genus ''Dalea''. These are generally thorny, thickly branched, strongly scented bushes. Most species bear lupinlike raceme inflorescences of bright purple legume flowers and gland-rich pods. ''Psorothamnus'' species are native to the southwestern United States and northern Mexico. The genus is paraphyletic and it has been proposed that the genus ''Psorodendron'' be reinstated to accommodate sections ''Xylodalea'', ''Capnodendron'', and ''Winnemucca''.〔 ==Species== ''Psorothamnus'' comprises the following species: * ''Psorothamnus arborescens'' (A. Gray) Barneby—Mojave indigo bush * * var. ''arborescens'' (A. Gray) Barneby * * var. ''minutifolius'' (Parish) Barneby * * var. ''pubescens'' (Parish) Barneby * * var. ''simplicifolius'' (Parish) Barneby * ''Psorothamnus emoryi'' (A. Gray) Rydb.—dyebush, Emory's indigo bush * ''Psorothamnus fremontii'' (A. Gray) Barneby—Fremont's indigo bush * * var. ''attenuatus'' Barneby * * var. ''fremontii'' (A. Gray) Barneby * ''Psorothamnus kingii'' (S. Watson) Barneby—King's dalea * ''Psorothamnus nummularius'' (M.E. Jones) S.L. Welsh * ''Psorothamnus polydenius'' (S. Watson) Rydb.—Nevada dalea * ''Psorothamnus schottii'' (Torr.) Barneby—Schott's dalea * ''Psorothamnus scoparius'' (A. Gray) Rydb.—broom dalea * ''Psorothamnus spinosus'' (A. Gray) Barneby—smoketree, smokethorn * ''Psorothamnus thompsoniae'' (Vail) S.L. Welsh & N.D. Atwood—Thompson's dalea 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Psorothamnus」の詳細全文を読む スポンサード リンク
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