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''Phragmites'', the common reed, is a large perennial grass found in wetlands throughout temperate and tropical regions of the world. ''Phragmites australis'' is sometimes regarded as the sole species of the genus ''Phragmites'', though some botanists divide ''Phragmites australis'' into three or four species. In particular the South Asian Khagra reed – ''Phragmites karka'' – is often treated as a distinct species. The World Checklist of Selected Plant Families, maintained by Kew Garden in London, accepts 4 species as of August 2013:〔(Kew World Checklist of Selected Plant Families )〕 #''Phragmites australis'' (Cav.) Trin. ex Steud. - cosmopolitan #''Phragmites japonicus'' Steud. - Japan, Korea, Ryukyu Islands, Russian Far East #''Phragmites karka'' (Retz.) Trin. ex Steud. - tropical Africa, southern Asia, Australia, some Pacific Islands #''Phragmites mauritianus'' Kunth - central + southern Africa, Madagascar, Mauritius ==Taxonomy== The generally accepted botanical name of common reed is ''Phragmites australis'' (Cav.) Trin. ex Steud.. Dozens of other synonyms have been proposed,〔http://eol.org/pages/1114576/names/synonyms〕 a few of which have been widely used. A few of the more important: *''Phragmites australis'' (Cav.) Trin. ex Steud.., Nomencl. Bot., 2nd ed, 2:324. 1841. * *''Phragmites communis'' Trin., Fund. Agrost. 134. 1820. (name ) * *''Arundo phragmites'' L., Sp. Pl. 1: 81. 1753. * *''Phragmites vulgaris'' (Lam.) Crep, Fl. Belgique, 2nd ed., 345. 1866 (name ) 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「Phragmites」の詳細全文を読む スポンサード リンク
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