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''Cirsium fontinale'' or fountain thistle is a flowering perennial herb in the sunflower family. It is endemic to California. The ''Cirsium'' genus is commonly known as the "thistle" genus, ''Cirsium'' being the Greek word for 'thistle.' ==Distribution== The species is endemic to limited regions within northern and central California, at elevations not exceeding . Occurrences appear limited to serpentine seeps and streams within the California Coast Ranges, in areas of the San Francisco Bay Area and of San Luis Obispo County. There are three recognized varieties of this species: *''Cirsium fontinale var. campylon'' — Mount Hamilton thistle; Diablo Range and southern Santa Clara Valley, San Francisco Bay Area. (Federal candidate for listing) *''Cirsium fontinale var. fontinale'' — Fountain thistle; San Mateo County. (Federal and State of California Endangered species) *''Cirsium fontinale var. obispoense'' — Chorro Creek bog thistle; San Luis Obispo County. (Federal and State of California Endangered species) 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 fontinale」の詳細全文を読む スポンサード リンク
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