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''Galium grayanum'' is a species of flowering plant in the coffee family known by the common name Gray's bedstraw. It is native to the high mountains of northern California, western Nevada and southwestern Oregon.〔(Kew World Checklist of Selected Plant Families )〕〔(Biota of North America Program )〕 ''Galium grayanum'' is a mat-forming perennial herb that grows in green carpet-like patches amongst the rock litter of mountain slopes. Its creeping stems may reach up to about 20 centimeters long. Leaves are arranged in whorls of four at intervals on the stem. They are oval-shaped, pointed, slightly fleshy, and velvety. The plant is dioecious, but male and female flowers are similar in appearance, with small yellowish to reddish corollas at the ends of the leafy stems. The fruit is a nutlet with a coat of very long hairs. When in fruit with a large number of nutlets the plant takes on a fuzzy appearance.〔Ehrendorfer, Friedrich. 1956. Contributions from the Dudley Herbarium 5(1): 15–16, f. 5.〕〔Hickman, J. C. 1993. The Jepson Manual: Higher Plants of California 1–1400. University of California Press, Berkeley.〕 ==Subspecies== Two subspecies are currently (May 2014) recognized:〔 *''Galium grayanum'' var. ''grayanum'' - California + Oregon *''Galium grayanum ''var''. nanum'' Dempster & Ehrend. - California (Tehama and Trinity Counties) to Nevada (Mt. Rose in Washoe County) 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「Galium grayanum」の詳細全文を読む スポンサード リンク
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