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Draba globosa : ウィキペディア英語版 | Draba globosa
''Draba globosa'' is a species of flowering plant in the mustard family known by the common names beavertip draba, round-fruited draba, and rockcress draba. It is native to the western United States, where it occurs in Idaho, Montana, Utah, Wyoming, and possibly Colorado.〔(''Draba globosa''. ) Flora of North America.〕 This species is a small, clumpy perennial herb with stems just a few centimeters long. The leaf blades are under a centimeter long. The inflorescence is a raceme of up to 7 flowers with white or light yellow petals.〔 This species is similar to many other ''Draba'' and a hand lens or microscope is necessary to tell them apart.〔(''Draba globosa''. ) NatureServe.〕 This species grows in mountain habitat such as talus and mountain meadows.〔 It is largely an alpine climate species, growing at elevations above 9000 feet. It can also be found in subalpine areas. The soils are limestone and granite and the terrain is rocky. It may be associated with a plant community dominated by ''Carex elynoides'' and ''Festuca brachyphylla''.〔Ladyman, J.A.R. (2004, February 27). (''Draba globosa'' Payson (beavertip draba): A technical conservation assessment. ) (). USDA Forest Service, Rocky Mountain Region.〕 ==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「Draba globosa」の詳細全文を読む
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