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Lilium pardalinum subsp. pitkinense
''Lilium pardalinum'' subsp. ''pitkinense'', the Pitkin Marsh lily, is an endangered perennial herb of the Liliaceae family that is endemic to certain wetland areas in the northern California Coast Ranges of Sonoma County, California, USA.〔(U.S. Fish and Wildlife Service plant profile for the Pitkin Marsh lily )〕 It is a subspecies of ''Lilium pardalinum''.
==Distribution==
''Lilium pardalinum'' subsp. ''pitkinense'' is found in the narrow elevation range of above mean sea level.〔 The Pitkin Marsh lily is found only in freshwater marshes and wet meadows in western Sonoma County, Northern California.〔(''Jepson Manual'', University of California Press (1993) )〕 There are only three known colonies of this rare species in the vicinity, including the Pitkin Marsh situated near State Route 116 between Sebastopol and Forestville, California.,.〔(Sonoma County Audubon Society Online )〕〔P. Rubtzoff, ''A phytogeographical analysis of the Pitkin Marsh (Sonoma County)''. Wasmann Journal of Biology. 11:129-219 (1953).〕
A land development proposal has been proposed which would infringe upon this marsh, which contains a second rare plant species, the white sedge, ''Carex albida''.
The historic range is thought to have been throughout a slightly wider portion of the wetlands of Sonoma County,〔''Environmental Impact Report for the proposed Roblar Road Rock Quarry'', Earth Metrics Inc. Report 7673, prepared for Sonoma County and the California State Clearinghouse, September, 1989〕 with much higher densities of organisms, possibly ranging into the Laguna de Santa Rosa.
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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