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''Astragalus australis'' is a species of flowering plant in the legume family known by the common name Indian milkvetch. It is native to much of the Northern Hemisphere, including northern North America, Europe, and temperate Asia.〔(''Astragalus australis''. ) Germplasm Resources Information Network.〕 This plant produces spreading and erect stems up to 25 centimeters tall from a caudex. The stems have a dense coat of hairs and have leaves alternately arranged. Each leaf is up to 3 to 4 centimeters long and is made up of leaflets measuring a few millimeters in length. The leaflets are covered in ashy gray hairs. The inflorescence is a raceme of up to 15 flowers with petals that are greenish, white, purplish, or pinkish with green veins and purple tips. The fruit is a hairless legume pod that matures deep red in color and measures up to 2.6 centimeters in length. It contains up to 12 seeds.〔Gillett, J. M., et al. (1999 onwards). (''Astragalus australis''. ) Fabaceae of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identification, and Information Retrieval. Version: 15 November 2000〕 This plant grows as far north as Banks Island in the Canadian Arctic Archipelago. It grows at the seaside, often on gravelly ridges.〔 This plant was used for food by the Cree and Stone peoples of North America.〔 Varieties of this plant include the rare var. ''olympicus'', Cotton's milkvetch, which is endemic to the Olympic Mountains of Washington in the United States.〔(var. ''olympicus''. ) Center for Plant Conservation.〕 It grows on subalpine mountain ridges with sparse vegetation.〔Kaye, T. N. (1999). (From flowering to dispersal: reproductive ecology of an endemic plant, ''Astragalus australis'' var. ''olympicus'' (Fabaceae). ) ''Am J Bot'' 86 1248-56.〕 ==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「Astragalus australis」の詳細全文を読む スポンサード リンク
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