Weed flora of low land rice fields of Lakhimpur district of Assam and their economic significance.
According to the results of surveys conducted during 2005-06, a total of 16 different weed species belonging to 12 families occurred most frequently in low rice fields in Lakhimpur, Assam, India. Among these, 8 are used by natives for household purposes, and as food and medicine. Ipomoea aquatica is used as food and medicine; Eleocharis spiralis, Cyperus pilosus and C. flavidus [Pycreus flavidus] as cattle food; and Typha latifolia leaves used for manufacturing baskets, cots and other household items. I. aquatica, Eichhornia crassipes and Drymaria cordata grew more profusely than the other weeds.