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''Diaperia prolifera,'' common name big-head rabbit-tobacco, is a plant species native to the central part of the United States from Montana to New Mexico to Alabama. It prefers dry, open areas.〔(Flora of North America, ''Diaperia prolifera'' )〕〔Shinners, L. H. 1951. The Texas species of ''Evax'' (Compositae). Field & Lab. 19: 125–126.〕 ''Diaperia prolifera'' is an annual herb up to 15 cm (6 inches) tall, grayish green to silvery because of thick woolly pubescence. The stem branches above ground, with leaves up to 15 mm long. Flower heads are usually produced one at a time, but occasionally in groups of 2-3.〔〔〔Nuttall, Thomas. Transactions of the American Philosophical Society, new series 7: 338. 1840.〕〔(Craig Fraiser, Arkansas' Rare and Endemic Natural Flora )〕 ;Varieties〔 Two varieties are generally recognized, intergrading in their region of overlap in Texas and Oklahoma:〔〔Morefield, Novon. 14: 470. 2004.〕 *''Diaperia prolifera'' var. ''prolifera'', grayish to green - Alabama, Arkansas, Colorado, Kansas, Louisiana, Mississippi, Missouri, Montana, Nebraska, New Mexico, Oklahoma, Texas, South Dakota, Wyoming *''Diaperia prolifera'' var. ''barnebyi'' Morefield, silvery white - New Mexico, Oklahoma, Texas ==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「Diaperia prolifera」の詳細全文を読む スポンサード リンク
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