仙台薹草(原变种) xian tai tai cao (yuan bian zhong)

Carex brunnea Thunberg var. sendaica (Franchet) Kükenthal; C. lenta D. Don var. sendaica (Franchet) T. Koyama; C. longistolon C. B. Clarke ex Franchet.

Culms 10-35 cm tall. Spikes 3 or 4, oblong-cylindric. Fl. and fr. Aug-Oct.

Thickets, grasslands, wet places on mountain slopes, ditch sides in valleys, rock crevices; 100-1900 m. Guizhou, Hubei, Jiangsu, Jiangxi, Shaanxi, Sichuan, Zhejiang [Japan (Sendai)].