类稗薹草 lei bai tai cao

Rhizome short, indurate. Culms tufted, 35-90 cm tall, sharply trigonous, scabrous above, with bladeless sheaths at base. Leaves usually longer than culm, blades linear, 4-5 mm wide, margins slightly scabrous, apex long acuminate. Involucral bracts glumelike. Spikes numerous, androgynous, ovate or oblong-ovate, 4-5 mm, inflorescence branched, paniculate, 8-13 cm. Female glumes broadly ovate, margins white hyaline, green 3-veined costa excurrent into a mucro. Utricles light green, nearly equaling glume, ovate or ovate-elliptic, plano-convex, 2.2-3.5 mm, membranous, nerveless, base not spongy, margins winglike and thickened, apex gradually narrowed into a beak, scabrous on margins, orifice deeply 2-lobed. Nutlets loosely enveloped, ovate or broadly elliptic, plano-convex, 1.3-2 mm, base abruptly contracted into a short stipe; style base slightly thickened; stigmas 2. Fl. and fr. May-Jun.

● Forests; ca. 2500 m. Xizang, NW Yunnan.