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''Descurainia torulosa'' is a species of flowering plant in the mustard family known by the common names Wyoming tansymustard and Wind River tansymustard. It is endemic to Wyoming in the United States, where it is found in the Absaroka Range and some buttes in the Great Divide Basin.〔(''Descurainia torulosa''. ) The Nature Conservancy.〕 This perennial or sometimes annual herb has hairy stems up to 15 centimeters long. The leaves are pinnate, divided into several lobes. The inflorescence is a raceme of flowers with yellowish sepals and four yellow petals. The fruit is a narrow silique which is torulose, or constricted between the seeds.〔(''Descurainia torulosa''. ) Flora of North America.〕〔Heidel, B. (2004, March 8). [http://www.fs.fed.us/r2/projects/scp/assessments/descurainiatorulosa.pdf ''Descurainia torulosa'' Rollins (Wind River tansymustard): A technical conservation assessment. [Online]. USDA Forest Service, Rocky Mountain Region.〕 Blooming occurs in June and July.〔 This plant grows on steep slopes, talus, and the sandy areas at the bases of cliffs.〔 ==References== Category:Flora of Wyoming Category:Plants described in 1983 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「Descurainia torulosa」の詳細全文を読む スポンサード リンク
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