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Cirsium ciliolatum : ウィキペディア英語版 | Cirsium ciliolatum
''Cirsium ciliolatum'' is a species of thistle known by the common name Ashland thistle. It is endemic to the Klamath Mountains, where it is known from only a few occurrences in Jackson and Josephine Counties in Oregon, as well as neighboring Humboldt and Siskiyou Counties in California.〔(Biota of North America Program 2014 county distribution map )〕〔(Calflora taxon report, University of California, ''Cirsium ciliolatum'' (L. Henderson) J. Howell, Ashland thistle )〕 It is related to ''Cirsium undulatum'' and may be more accurately described as a variety of that species.〔(Flora of North America, ''Cirsium ciliolatum'' )〕 ''Cirsium ciliolatum'' is a perennial herb growing from a rootstock branching with runner roots to a maximum height near . It is cobwebby with fibers. The gray-green woolly leaves are smooth along the edges to deeply lobed, sometimes spiny and cobwebby, and up to 25 centimeters at the longest. The inflorescence is a cluster of several flower heads each about 2 centimeters long and up to 5 wide. The head is lined with sticky, spiny phyllaries and packed with white to lavender flowers. The fruit is an achene with a thick body a few millimeters long and a pappus about 1.5 centimeters in length.〔 ==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「Cirsium ciliolatum」の詳細全文を読む
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