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FOC | Family List | FOC Vol. 23 | Cyperaceae | Fimbristylis

13. Fimbristylis insignis Thwaites, Enum. Pl. Zeyl. 349. 1864.

硬穗飘拂草 ying sui piao fu cao

Perennials. Rhizomes short. Culms 20-40 cm tall, ± stiff, cylindric but sometimes slightly compressed on apical part, deeply striate, smooth, glabrous, basal sheaths bladed. Leaves 1/3-1/2 as long as culm; sheath less than 5 cm, leathery; ligule absent; leaf blade 1-2.5 mm wide, flat, subleathery, margin finely serrulate, apex acute to slightly obtuse. Involucral bracts 2 or 3, erect, leaflike, shorter than inflorescence, base slightly dilated. Inflorescence a simple or compound anthela, with 3-5 rays and 10 or more spikelets; rays flatly cylindric, 2-4 cm, slightly rigid. Spikelets solitary, narrowly oblong-ovoid, 10-20 × ca. 4 mm, subterete, with basal 2 or 3 glumes empty, apex acute. Glumes densely spirally imbricate, oblong, ca. 6 mm, midvein distinct and forming an abaxial keel, apex mucronate. Stamens 3; anthers linear-oblong, ca. 2 mm. Style 4-5 mm, 3-sided, basally inflated, apically ciliate; stigmas 3. Nutlet grayish black when mature, broadly obcordate, ca. 1.5 mm, 3-sided, verruculose with hexagonal reticulation. Fl. and fr. Jun.

Dry slopes, poor soil. Guangdong, Hainan [Indonesia, Laos, Malaysia, Papua New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; Australia].


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