Botanical name: Cyperus alulatus Family: Cyperaceae (Sedge family)
Winged Sedge is an annual herb, 12-40 cm with roots numerous, hairless. Stem is 1-2.5 mm in diameter, sharply trigonous, smooth. Leaves are shorter than, to equalling stem length, rather rigid; sheaths 2.5-4.5 cm, yellowish or grey, wide, mouth margin deeply concave. Leaf blades are up to 15 cm long, 3 mm wide, flat or slightly keeled, with brown dots and stripes, margins smooth, tip pointed, rough. Inflorescence is a simple or compound anthelodium, 4-17 cm, primary branches 6-10, up to 13 cm, secondary anthelodium up to 3.5 cm, tubular prophyll loosely sheathing, to 15 mm; lowest 4-6 bracts foliose, to more than 20 cm. Clusters of 6-16 spikes in loose spirals; spikes 4.3-10.8 x 2-2.5 mm, spreading at almost right angles. Winged Sedge is found in rice fields, wet places up to 1500 m, in Afghanistan, Nepal, Pakistan, West Himalaya and Western Ghats. Flowering: September.
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The flower labeled Winged Sedge is ...