Hygroryza aristata (PROSEA)
Hygroryza aristata (Retzius) Nees ex Wight & Arnott
- Family: Gramineae
- Leersia aristata (Retzius) Roxb.,
- Pharus aristatus Retzius,
- Zizania aristata (Retzius) Kunth.
- Bengal wild rice (En)
- Thailand: puchaoloitha, ya-phonglom
- Vietnam: thia thia.
From India to Indo-China, including Burma (Myanmar) and Thailand. In Assam (India) sometimes cultivated in rivers for forage use.
The grain is eaten in times of scarcity. The whole plant constitutes a good forage, and cattle and buffalo are fond of it.
- Glabrous perennial aquatic grass, floating and forming dense mats in quiet water, or creeping on wet ground.
- Stem up to 1.5 m long, spongy, diffusely branched, rooting at the nodes.
- Leaf sheath inflated; leaf blade elliptical, 3-6 cm × 5-17 mm.
- Inflorescence a panicle with 4-5 major branches whorled at the top of the peduncle; spikelet one-flowered on pedicel up to 2 mm long; glumes absent; lemma coriaceous, 5-veined, long-awned, palea 3-veined, stamens 6.
- Caryopsis subcylindrical, 2-3 mm long, with long linear hilum.
H. aristata is found in shallow (up to 60 cm deep) water of permanent or semi-permanent lakes, ponds, swamps, canals and slow-moving streams, up to 350 m altitude. In the dry season the plant survives in muddy areas. Sometimes a troublesome weed in navigation and irrigation canals. The grains are sweet and oleaginous. They are said to be cooling and useful in biliousness.
3, 7, 19, 20, 33, 35.
- H.N. van der Hoek & P.C.M. Jansen