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Artemisia arbuscula
''Artemisia arbuscula'' is a North American species of sagebrush known by the common names little sagebrush, low sagebrush, or black sagebrush. It is native to the western United States from Washington, Oregon, and California east as far as Colorado and Wyoming. It grows in open, exposed habitat on dry, sterile soils high in rock and clay content.〔(Flora of North America Vol. 19, 20 and 21 Page 511 Low sagebrush Artemisia arbuscula Nuttall, Trans. Amer. Philos. Soc., n. s. 7: 398. 1841. )〕〔(Biota of North America Program 2014 county distribution map )〕〔(Calflora taxon report, University of California, ''Artemisia arbuscula'' Nutt., Black sagebrush, low sagebrush )〕
''Artemisia arbuscula'' is a gray-green to gray shrub forming mounds generally no higher than . Its many branches are covered in hairy leaves each less than a centimeter long. The inflorescence is a spike-shaped array of clusters of hairy flower heads. Each head contains a few pale yellow disc florets but no ray florets. The fruit is a tiny achene less than a millimeter wide.〔
;Subspecies〔〔
* ''Artemisia arbuscula'' subsp. ''arbuscula''
* ''Artemisia arbuscula'' subsp. ''longiloba'' (Osterh.) L.M.Shultz
* ''Artemisia arbuscula'' subsp. ''thermopola'' Beetle - Idaho, Utah, Wyoming
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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