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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 Hexastylis naniflora ： ウィキペディア英語版 Hexastylis naniflora ''Hexastylis naniflora'' is a rare species of flowering plant in the birthwort family known by the common name dwarf-flowered heartleaf. It is endemic to the Piedmont region of the United States, where it is limited to a small area straddling the border between North Carolina and South Carolina. It is a federally listed threatened species.〔USFWS. (Threatened status of ''Hexastylis naniflora'' (dwarf-flowered heartleaf). ) ''Federal Register'' April 14, 1989.〕 This is a rhizomatous perennial herb forming a small patch on the ground, the leaves emerging from the underground rhizome. The evergreen leaves have leathery heart-shaped blades. The plant produces one new leaf per year.〔(''Hexastylis naniflora''. ) Center for Plant Conservation.〕 The fleshy brown flowers are jug-shaped and may remain buried in the leaf litter.〔〔(''Hexastylis naniflora''. ) The Nature Conservancy.〕 This plant occurs in oak-hickory-pine plant communities. It typically grows on slopes near streams in moist, acidic soils. It is associated with ''Kalmia latifolia'' (mountain-laurel) and can often be found growing beneath it.〔〔〔(''Hexastylis naniflora''. ) Flora of North America.〕 It is associated with several species of oak, particularly ''Quercus coccinea'' (scarlet oak), ''Quercus montana'' (chestnut oak), and ''Quercus velutina'' (black oak).〔 The plant is known from eleven counties in southern North Carolina and northern South Carolina. In 2004 there were about 150 populations known,〔 but many of these are very small.〔 The main threat to the species is the loss and degradation of its habitat. Much of the plant's historical habitat has been converted to agriculture, particularly peach orchards, and developed into residential areas.〔 Remaining populations can be found on land which is threatened by cattle grazing, agriculture, expanding residential and commercial areas, timber harvesting, and construction of ponds and lakes.〔〔 ==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「Hexastylis naniflora」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.