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''Frasera gypsicola'' is a species of flowering plant in the gentian family known by the common names Sunnyside green-gentian, Sunnyside elkweed, and Sunnyside frasera. It is native to southeastern Nevada and southwestern Utah in the United States.〔(''Frasera gypsicola''. ) The Nature Conservancy.〕〔(''Frasera gypsicola''. ) Center for Plant Conservation.〕 This perennial herb has a mound of basal grasslike leaves and stems up to 20 centimeters tall. The flowers are white with a green base and purple mottling. Flowering occurs in June and July.〔〔 It is easily told from ''Frasera albomarginata'', which may grow with it.〔Smith, F. J. (Current knowledge and conservation status of ''Frasera gypsicola'' Barneby (Gentianaceae), the Sunnyside green gentian, in Nevada. ) Status report prepared for Nevada Natural Heritage Program. February 2000.〕 This plant was first collected in Nye County, Nevada, near Sunnyside. It was described to science in 1942. Like other ''Frasera'', it was previously included in genus ''Swertia'', and some authors will retain it in that genus. In 1983 it was discovered in Utah for the first time. It has not been observed there since then, and the population size there is unknown.〔 This plant grows in the Great Basin of the United States. It is found in the White River Valley in Nevada and in Millard County, Utah. The habitat is calcareous rock barrens and saline washes. When the plant received its name it was thought that the substrate contained high amounts of gypsum, but analysis shows that there are only small amounts, if any. Associated plants include ''Artemisia pygmaea'', ''Artemisia tridentata'', ''Chrysothamnus'' sp. and ''Sarcobatus vermiculatus'', ''Elymus cinereus'', ''Elymus elymoides'', ''Sporobolus airoides'', ''Stipa hymenoides'', ''Comandra umbellata'', ''Eriogonum shockleyi'', ''Hymenopappus filifolius'', ''Lepidium nanum'', ''Phlox tumulosa'', and ''Physaria'' sp.〔 Threats to this plant include habitat destruction and degradation caused by cattle and vehicles.〔 ==References== 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「Frasera gypsicola」の詳細全文を読む スポンサード リンク
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