芒苞飘拂草 mang bao piao fu cao

Trichelostylis salbundia Nees in Wight, Contr. Bot. India, 105. 1834; Fimbristylis haspaniformis T. Koyama.

Perennials, rhizomatous. Culms crowded along rhizome, 30-80 cm tall, 1-3 mm thick, acutely 4- or 5-angled, smooth. Leaves bladeless; sheath dusky or cinnamon brown, 1-17 cm, apex lanceolate; ligule absent. Involucral bracts 2-5, setaceous with lanceolate base, longest to 1.5 cm. Inflorescence a compound or decompound anthela, 2-6 × 2-6 cm, open; primary rays 6-8, to 5 cm. Spikelets ovoid to ovoid-ellipsoid, 3-5 × ca. 2 mm. Glumes many, spirally imbricate, light brown, ovate, 2-2.3 × ca. 1.5 mm, membranous, margin hyaline, 1-veined forming an abaxial pale brown obtuse keel, apex obtuse. Stamens (2 or)3; anthers 0.7-1 mm. Stigmas 3. Nutlet whitish to yellowish brown, broadly obovoid, 0.8-1 × 0.6-0.8 mm, 3-sided, smooth to sparsely verruculose, with 9-14 longitudinal rows of epidermal cells on each side. Fl. and fr. Sep.

Swampy places; 1700-1800 m. Yunnan [India, Indonesia, Malaysia, Myanmar, Papua New Guinea, Philippines, Sri Lanka, N Thailand, Vietnam].