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Navarretia fossalis : ウィキペディア英語版 | Navarretia fossalis
''Navarretia fossalis'' is a rare species of flowering plant in the phlox family known by the common name spreading navarretia. ==Distribution== The plant is native to southern California and Baja California, where it is known only from vernally wet areas, such as vernal pools, ditches, and other areas that are wet or flooded during the rainy season and dry the rest of the year. Many of these habitat areas have alkali soils arranged in uneven mounds and depressions that collect water and drain slowly before drying up.〔USFWS. (Proposed Revised Critical Habitat for ''Navarretia fossalis'' (Spreading Navarretia). ) June 10, 2009.〕 The plant became a federally listed threatened species in the United States in 1998, when there were approximately 30 occurrences of the species remaining in Southern California and about nine left across the border in Baja California.〔 By 2009, an additional 17 occurrences had been documented.〔 The plant often occurs with ''Psilocarphus brevissimus''.〔(Center for Plant Conservation )〕
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