球穗扁莎(原变种) qiu sui bian suo (yuan bian zhong)

Cyperus flavidus Retzius, Observ. Bot. 5: 13. 1788; C. globosus Allioni (1789), not Forsskål (1775); Pycreus globosus Reichenbach.

Culms tufted, 7-50 cm tall. Leaves shorter than culm. Inflorescence a simple anthela; rays 2-6, each with many to rarely few spikelets. Spikelets 0.6-1.8 cm × 1.5-3 mm, 12-34(-66)-flowered. Glumes yellowish brown, reddish brown, or dark purplish red, lax. Fl. and fr. Jun-Nov.

Wet places at river margins, ditch margins, herbaceous along trails, field margins; below 100-3400 m. Anhui, Chongqing, Fujian, S Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Xinjiang, SE Xizang, Yunnan, Zhejiang [Bangladesh, Bhutan, Cambodia, India, Indonesia, Japan, Kashmir, Kazakhstan, Korea, Laos, Malaysia, Nepal, Pakistan, Papua New Guinea, Philippines, Russia, Sri Lanka, Tajikistan, Thailand, Turkmenistan, Uzbekistan, Vietnam; SW Africa, SW Asia, Australia, S Europe, Indian Ocean islands, Madagascar].