Northeastern Asian Flora
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Cyperus iria L.   (redirected from: Cyperus iria f. diaphaniria (Steud.) Miq.)
Family: Cyperaceae
[Chlorocyperus iria (L.) Rikli, moreCyperus chrysomelinus Link, Cyperus diaphaniria Steud., Cyperus iria f. chrysomelinus (Link) K?., Cyperus iria f. diaphaniria (Steud.) Miq., Cyperus iria f. flavescens (Benth.) Domin, Cyperus iria f. multiflora Domin, Cyperus iria var. flavescens Benth., Cyperus iria var. paniciformis (Franch. & Sav.) C.B.Clarke, Cyperus iria var. santonici (Rottb.) Fernald & Griscom, Cyperus nangtciangensis Pamp., Cyperus paniciformis Franch. & Sav., Cyperus panicoides Lam., Cyperus resinosus Hochst. ex Steud., Cyperus santonici Rottb.]
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  • Japan Flora
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Japan Flora: Annual; culms loosely tufted, 20-60 cm. long; leaves 2-6 mm. wide; corymbs simple or compound, to 15 cm. long, with 3-5 rays, the bracts 4 or 5, the lower 2 or 3 longer than the inflorescence; spikelets spreading or ascending, numerous, densely 10- to 30-flowered, linear, 5-10 mm. long, 1.5-2 mm. wide, compressed, yellowish; scales broadly obovate, 1-1.5 mm. long, emarginate and minutely mucronate, the midrib green; achenes slightly shorter than the scale, obovate, 3-angled, browidsh; stigmas 3.  Cultivated fields and wastelands. 

Honshu, Shikoku, Kyushu; common. Ryukyus, Formosa, Korea, China, Indochina, Malaysia, India,Africa, and Aus­tralia.

Cyperus iria
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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