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Schoenoplectus mucronatus : ウィキペディア英語版 | Schoenoplectus mucronatus
''Schoenoplectus mucronatus'' (syn. ''Scirpus mucronatus'') is a species of flowering plant in the sedge family known by the common names bog bulrush, rough-seed bulrush, and ricefield bulrush. It is native to Eurasia and Africa it is known on other continents as an introduced species and sometimes a weed. It is a weed of rice fields in California.〔(UC Davis IPM )〕〔(Flora of North America )〕 It grows in moist and wet terrestrial habitat, and in shallow water. It is a perennial herb growing from a short, hard rhizome. The erect, three-angled stems grow in dense clumps and reach a meter tall. The leaves take the form of sheaths wrapped around the base of stem, but they generally do not have blades. The inflorescence is a headlike cluster of cone-shaped spikelets accompanied by an angled, stiff bract which may look like a continuation of the stem. ==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「Schoenoplectus mucronatus」の詳細全文を読む
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