寸草(原亚种) cun cao (yuan ya zhong)

Carex duriuscula var. tenuispica X. Y. Yuan; C. stenophylla Wahlenberg var. duriuscula (C. A. Meyer) Trautvetter.

Leaf blades linear-involute. Female glumes ferruginous-brown, white hyaline on margins.

Grasslands, slopes, wet places on riverbanks, roadsides; 200-700 m. Gansu, Heilongjiang, Jilin, Liaoning, Nei Mongol [Kazakhstan, Korea, E Mongolia, New Guinea, Russia (Far East, Siberia); North America].