波密薹草 bo mi tai cao

Rhizome short. Culms 40-50 cm tall, densely tufted, compressed cylindric, smooth, clothed at base with castaneous sheaths. Leaves basal, shorter than culm, blade linear, 2-3 mm wide, flat, margins scabrous. Lower involucral bracts leaflike. Spikes linear, 1-4 cm, 4-7 each arising from involucral bract axil, usually female, only one spike gynaecandrous; peduncles unequal. Female glumes pale castaneous, elliptic, ca. 2 mm, 1-veined, narrowly white hyaline margined. Utricles slightly longer than glume, ca. 2.3 mm, base shortly stipitate, apex abruptly contracted into a long beak, 0.8-1 mm. Nutlets tightly enveloped, elliptic, trigonous; style short; stigmas 3. Fl. and fr. Jul-Aug.

● Ditch sides in forests, moist places; 2100-2800 m. SE Xizang (Mêdog).