高秆莎草(原变种) gao gan suo cao (yuan bian zhong)

Spikes cylindric, 2-5 cm × 7-10 mm. Spikelets slightly laxly arranged, 4-6 × 1-1.5 mm, 6-16-flowered. Fl. and fr. Jun-Aug. 2n = 96.

Moist or wet places; (near sea level to) 500-1100 m. Anhui, Fujian, Guangdong, S Guizhou, Hainan, E Hubei, Jiangsu, Jilin, Shandong, Taiwan, Zhejiang [Bangladesh, India, Indonesia, Japan, Kashmir, Korea, Malaysia, Myanmar, Pakistan, Papua New Guinea, Sri Lanka, Thailand, Vietnam; tropical Africa, Australia, Indian Ocean islands].

Cyperus exaltatus var. exaltatus has been introduced to South America. It is similar to the Mexican endemic Cyperus semiochraceus Boeckeler.

The culms are used for making mats.