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FOC | Family List | FOC Vol. 23 | Cyperaceae | Cyperus

49a. Cyperus orthostachyus var. orthostachyus

三轮草(原变种) san lun cao (yuan bian zhong)

Cyperus truncatus Turczaninow var. orthostachyus (Franchet & Savatier) C. B. Clarke.

Involucral bracts basal 1 or 2 longer than inflorescence. Spikes ovoid-oblong to broadly ovoid, with 5-32 spikelets. Spikelets slightly laxly arranged, 4-25 × 1.5-2 mm, obliquely spreading but divergent after anthesis, 10-46-flowered. Fl. and fr. Jul-Oct.

Mountain slopes, river margins, ditch margins, grasslands, along trails, wet places, paddy fields; 300-1500 m. Anhui, Chongqing, Fujian, NE Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Shaanxi, Shandong, Zhejiang [Japan, Korea, Russia (Far East, E Siberia), Vietnam].


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