Origin
North-east India (as an aquatic grass). (It forms an important parat of the floating grass island in Logtak Lake, Manipur.) Cultivated in China.
Action:
Clums, rhizomes, grains— used in China against anaemia and fevers, also for heart, kidney and liver affections. The herb exhibits diuretic activity; leaves are rich in vitamin C.
Khare, C.P./ Indian Medicinal Plants. -- Nueva Dheli: Springer, 2007 . - p 731.