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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Physaria tumulosa ： ウィキペディア英語版 Physaria tumulosa ''Physaria tumulosa'' is a rare species of flowering plant in the mustard family known by the common name Kodachrome bladderpod. It is endemic to Utah in the United States, where it is known only from Kane County.〔(''Lesquerella tumulosa''. ) The Nature Conservancy.〕 There is only one known population of this plant made up of scattered occurrences totalling about 20,000 individuals, all within the Kodachrome Basin.〔USFWS. (''Lesquerella tumulosa'' Final Recovery Outline. ) October 2009.〕 The plant is threatened by the loss and degradation of its habitat.〔 It is federally listed as an endangered species. It was previously treated as a subspecies of ''Physaria hitchcockii''.〔(''Physaria tumulosa''. ) Flora of North America.〕 This is a perennial herb producing short stems from a buried caudex and forming a tough mat just a few centimeters tall. The mat has hairy, somewhat fleshy leaves which are linear or lance-shaped and up to 1.2 centimeters long. The inflorescence is a crowded raceme of bright yellow flowers. The fruit is an inflated silique a few millimeters wide.〔〔USFWS. (Final rule to determine a Utah plant, ''Lesquerella tumulosa'' (Kodachrome Bladderpod) as an endangered species. ) ''Federal Register'' October 6, 1993.〕 The single known population of this plant is mostly located on land within the bounds of the Grand Staircase-Escalante National Monument and Kodachrome Basin State Park. It grows on dry outcrops of white shale at roughly in elevation. The rock is part of the Carmel geologic formation. The plant is commonly associated with buckbrush (''Purshia tridentata'') and yellow cryptantha (''Cryptantha flava''), but it grows on bare rocky substrate with little other vegetation.〔 This plant is a narrow endemic which is limited in distribution, and the land on which it grows is impacted by a number of processes. The main threat to the species is off-road vehicle use.〔 The vehicles cause soil degradation, erosion, and plant mortality. Gravel mining was a threat to the species but since the area was designated a national monument these operations have ceased.〔 ==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「Physaria tumulosa」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.