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Hygroryza aristata (Retz.) Nees ex Wight & Am. in Edinb. New Phil. J. 15:380. 1833. Duthie, Fodder Grasses 20. 1888; Hook.f., Fl. Brit. Ind. 7:95. 1896; Blatter & McCann, Bombay Grasses 271. 1935; Bor, Fl. Assam 5:174. 1940; Bor, Grasses Burma Ceyl. Ind. Pak. 597 1960.
Leersia aristata (Retz.) Roxb.Pharus aristatus Retz.Potomochloa retzii Griff.Zizania retzii Spreng.
Mat-forming perennial; stems 30 cm or more long, spongy, with whorled feathery roots at the nodes. Leaf-blades flat, ovate-oblong, obtuse, 2.5-7.5 cm long, 12-20 mm wide, scaberulous above, smooth and glaucous beneath, rounded or subcordate at the base. Panicle triangular, 3-6 cm long and wide, the lower branches spreading or sometimes deflexed. Spikelets sessile or very shortly pedicelled with a long pedicel-like callus articulated with the panicle-branch or pedicel and falling with the spikelet; body of lemma up to 10 mm long, passing into the 10-12 mm long, scaberulous awn.
Type locality: India.
Distribution: as for genus.
A floating grass forming pure mats on the surface of the water; cattle are fond of it and people have been known to eat the grain.
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