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(Upload on April 29 2025) [ 日本語 | English ]

Cyperus L. (カヤツリグサ) Chagayatsuri (チャガヤツリ, 茶蚊帳吊), Asian flat sedge Lifeform: annual sedge, with 30-40 cm in height and less rhizomes Distribution: Ussuri - Amur - China - Taiwan - Korea - Japan (south to Honshu) Habitat: open lands, roadsides and croplands ☛ similar with C. microiria, C. iria

Synonyms: Cyperus × amuricocompressus T. Koyama Cyperus amuricus Maxim. var. laxus (Franch. et Sav.) Nakai, discarded Cyperus amuricus Maxim. var. japonicus Miq. (コチャガヤツリ), discarded

Cyperus amuricus in Japan

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1 2 3
[1-3] along Ikarashi Coast near Niigata University, Honshu, on July 27 1990. The specimen is kept in SAPS.