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Lithophragma maximum
''Lithophragma maximum'', known by the common name San Clemente Island woodland star, is a rare species of flowering plant in the saxifrage family. It is endemic to San Clemente Island, one of the eight Channel Islands of California. It is known from only about four kilometers of rocky coastal cliffs on the edge of the island.〔Furches, M.S., et al. (2009). (High genetic divergence characterizes populations of the endemic plant ''Lithophragma maximum'' (Saxifragaceae) on San Clemente Island ). ''Conservation Genetics'' 10:115-26.〕 The plant was thought to be extinct until a few specimens were rediscovered in 1979.〔USFWS. (Determination of Endangered Status for Three Plants from the Channel Islands of Southern California. ) Federal Register. August 8, 1997.〕 Only 200 individuals were tallied in a 1996 survey.〔 In 1997 the plant was listed as an endangered species on the federal level.
==Description==
''Lithophragma maximum'' is a rhizomatous perennial herb growing erect or leaning with a slender naked flowering stem. The leaves are located on the lower part of the stem, each divided into three sharply toothed leaflets. The stem bears up to 25 flowers, each in a cuplike calyx of red or green sepals. The five petals are white or pink-tinged, approximately 4 millimeters long, and usually divided into about five pointed lobes.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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