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Sidalcea covillei
''Sidalcea covillei'' is an uncommon species of flowering plant in the mallow family known by the common names Owens Valley sidalcea, and Owens Valley checkerbloom. It is endemic to the Owens Valley of Inyo County, California,〔Andreasen, K. and B. G. Baldwin. (2003). (Reexamination of relationships, habital evolution, and phylogeography of checker mallows (''Sidalcea''; Malvaceae) based on molecular phylogenetic data. ) ''Am J Bot'' 90: 436-44.〕〔(The Nature Conservancy )〕 where it grows on alkali flats and in alkaline meadows and springs. While it is limited to this single valley, it is known from 44 sites there, and several populations are relatively large, with the total global population estimated at about two million individuals.〔
This is a perennial herb growing from one or more fleshy roots and reaching maximum heights between 20 and 60 centimeters. The stem is hairy, with rough, bristly hairs near the base and finer ones higher up. The leaves have blades deeply divided into narrow linear lobes, almost divided into leaflets. The leaves are fleshy and waxy in texture. The inflorescence is an open panicle of several flowers each with five pinkish purple petals up to 1.5 centimeters long. The leaves and flower sepals are coated in tiny branching hairs.
Threats to this species include a dropping water table, which prevents water from accumulating at the surface in the plant's alkaline-seep habitat, moving the water out of reach of the plant.〔
==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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