遵义薹草 zun yi tai cao

Rhizome short, woody. Culms very short. Leaves 25-70 cm, blades dark green, broadly linear, 1-1.5 cm wide, flat, base clothed with dark brown sheaths disintegrating into fibers, upper margins slightly scabrous, apex acute or acuminate. Involucral bracts shortly bladed, sheathless. Spikes 4-7, subbasal, approximate; terminal spike male, linear-cylindric, 3.5-5 cm; remaining spikes female, oblong-cylindric, 3-5 cm, densely flowered, pedunculate. Female glumes green-yellow, lanceolate, ca. 4 mm, margins scabrous, 3-veined costa excurrent into a scabrous mucro at sharp apex. Utricles olivaceous-green, longer than glume, obliquely patent, elliptic, 4-5 mm, membranous, sparsely hispid, many veined, contracted at both ends, apical beak subcylindric, 2-toothed at orifice. Nutlets yellow when young, tightly enveloped, ovate-elliptic, trigonous with angles constricted above, apical beak short, curved, expanding into an annulate orifice; stigmas 3. Fl. and fr. Mar-Apr.

● Streamsides along valleys, on rocks in forests; 200-1400 m. Anhui, Guangdong, Guangxi, Guizhou, Sichuan.