独穗飘拂草 du sui piao fu cao

Carex ovata N. L. Burman, Fl. Indica, 194. 1768; Abildgaardia monostachyos (Linnaeus) Vahl; A. ovata (N. L. Burman) Kral; Cyperus monostachyos Linnaeus; Fimbristylis monostachyos (Linnaeus) Haaskarl; Iria monostachyos (Linnaeus) Kuntze.

Perennials. Rhizomes short. Culms tufted, 15-35 cm tall, slender. Leaves 1/2-2/3 as long as culm; leaf blade 0.5-1 mm wide, apex acute. Involucral bracts 1-3, glumelike but basalmost sometimes leaflike, 0.5-1.8 cm, apex with a 2-3 mm awn. Inflorescences reduced to a single terminal spikelet, ovoid, ellipsoid, or oblong-ovoid, 7-13 × ca. 5 mm, slightly compressed, with basal glumes distichous and apical ones spirally imbricate. Glumes yellowish green, broadly ovate to ovate, 3-6 mm, leathery, shiny, abaxially 3-veined, midvein prominent and excurrent into a mucro. Stamens 3. Style 3-sided, basally inflated; stigmas 3. Nutlet shortly stipitate, obovoid, ca. 2 mm, 3-sided, prominently verruculose. Fl. and fr. Jun-Sep. 2n = 10.

Grasslands, roadsides, waste fields, open moist hillsides, streamsides, sunny dry slopes, grassy slopes; 100-1400 m. Fujian, Guangdong, Guangxi, S Guizhou, Hainan, S Hunan, NE Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, India, Indonesia, Japan, Korea, Laos, Malaysia, Pakistan, Papua New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; tropical Africa, SW Asia (Yemen), Central and South America, Pacific islands].