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Erigeron pumilus (shaggy fleabane,〔 vernal daisy) is a hairy North American species of perennial plants in the (daisy family).〔Canyon Country Wildflowers, Damian Fagan, 2nd ed., 2012, Morris Bush Publishing, LLC. in cooperation with Canyonlands Natural History Association, ISBN 978-0-7627-7013-7〕 It is widespread across much of western Canada and the western United States, from British Columbia east to Saskatchewan and south as far as Oklahoma and the San Bernardino Mountains of California.〔(Biota of North America Program 2014 county distribution map )〕〔(Calflora taxon report, University of California, ''Erigeron pumilus'' Nutt., shaggy fleabane )〕 There have been reports of the plant growing in Yukon Territory, but these were based on misidentified specimens.〔(Flora of North America, ''Erigeron pumilus'' Nuttall var. ''pumilus'' )〕 ''Erigeron pumilus'' is a perennial herb up to 50 cm (20 inches) tall with a thick taproot. Leaves and stems are both covered with many stiff hairs. Flower heads usually come in groups of 1-5 heads, but occasionally in large arrays of as many as 50. Each head has 50–100 white or pink (rarely pale blue) ray florets surrounding many yellow disc florets. The species grows mostly on dry slopes and plains, often among sagebrush or in prairies.〔(Flora of North America, ''Erigeron pumilus'' Nuttall, Gen. N. Amer. Pl. 2: 147. 1818. Shaggy fleabane )〕 "Pumilus" means "dwarf", referring to the small size of this hairy little plant.〔 ;Varieties〔〔 *''Erigeron pumilus'' var. ''intermedius'' (Cronquist) Cronquist - British Columbia, California, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming *''Erigeron pumilus'' var. ''pumilus'' - Alberta, Saskatchewan, Colorado, Kansas, Montana, Nebraska, the Dakotas, Washington, Wyoming ==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「Erigeron pumilus」の詳細全文を読む スポンサード リンク
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