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Ruppia cirrhosa : ウィキペディア英語版 | Ruppia cirrhosa
''Ruppia cirrhosa'' is a species of aquatic plant known by the common name spiral ditchgrass. It is native to the Americas and Europe, where it grows in freshwater bodies, such as lakes. It is a thread-thin, grasslike perennial herb which grows from a rhizome anchored in the wet substrate. It produces a long, narrow inflorescence tipped with two tiny flowers. As the fruit develops the peduncle of the inflorescence curls into a neat spiral. ==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「Ruppia cirrhosa」の詳細全文を読む
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