"Alternanthera sessilis", Sessile Joyweed, Dwarf copperleaf, Joyweed, is a perennial herb in Amaranthaceae family, often found in and near ponds, canals and reservoirs. It prefers places with constant or periodically high humidity and so may be found in swamps, shallow ditches, and fallow rice fields. A much branched prostrate herb, branches often purplish, frequently rooting at the lower nodes; leaves simple, opposite, somewhat fleshy, lanceolate, oblanceolate or linear-oblong, obtuse or subacute, sometimes obscurely denticulate, glabrous, shortly petiolate; flowers small, white, in axillary clusters; fruits compressed obcordate utricles, seeds suborbicular.