翻訳と辞書 Words near each other ・ Juncus maritimus ・ Juncus megacephalus ・ Juncus mertensianus ・ Juncus mexicanus ・ Juncus nevadensis ・ Juncus nodosus ・ Juncus occidentalis ・ Juncus orthophyllus ・ Juncus oxymeris ・ Juncus pallidus ・ Juncus parryi ・ Juncus patens ・ Juncus phaeocephalus ・ Juncus planifolius ・ Juncus regelii ・ Juncus roemerianus ・ Juncus rugulosus ・ Juncus saximontanus ・ Juncus scheuchzerioides ・ Juncus subnodulosus ・ Juncus subnodulosus–Cirsium palustre fen-meadow ・ Juncus subsecundus ・ Juncus tenuis ・ Juncus textilis ・ Juncus tiehmii ・ Juncus torreyi ・ Juncus trifidus ・ Juncus triformis ・ Juncus uncialis ・ Juncus xiphioides Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Juncus roemerianus ： ウィキペディア英語版 Juncus roemerianus ''Juncus roemerianus'' is a species of flowering plant in the rush family known by the common names black rush, needlerush, and black needlerush. It is native to North America, where its main distribution lies along the coastline of the southeastern United States, including the Gulf Coast. It occurs from New Jersey to Texas, with outlying populations in Connecticut, New York, Mexico, and certain Caribbean islands.〔Uchytil, Ronald J. (1992). (''Juncus roemerianus''. ) In: Fire Effects Information System, (). U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Retrieved 1-2-2012.〕 ==Description== This rush is a perennial plant forming tufts of rough, rigid stems and leaves. It is gray-green in color. The plant may appear to be leafless at first glance, but what look like sharp-pointed stems are actually stiff leaves rolled tightly to form pointed cylinders. The true stems are tipped with inflorescences.〔(''Juncus roemerianus''. ) University of Florida IFAS Center for Aquatic and Invasive Plants. Retrieved 1-2-2012.〕 It grows from a rhizome. This plant is variable in appearance. Its size and shape depend on environmental conditions in its salt marsh habitat. In areas with low soil salinity the plant can exceed two meters in height, whereas in high-salinity areas the rush is dwarfed, sometimes measuring under 30 centimeters (12 in.) tall. Both large and small plants generally occur in one marsh, with the large plants nearest the open water and the small plants occurring on higher ground in the salt flats and other areas of higher salinity.〔 Plants of different sizes differ genetically, as well, with soil salinity being the selective force leading to the genetic variation. The dwarf plants have an adaptation to high soil salinity. Larger plants lack this adaptation, and do not survive when experimentally transplanted to high-salinity environments.〔Eleuterius, L. N. (1989). (Natural selection and genetic adaptation to hypersalinity in ''Juncus roemerianus'' Scheele. ) ''Aquatic Botany'' 36(1) 45-53. Retrieved 1-2-2012.〕 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「Juncus roemerianus」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.