Villus
These are wet grassland found in the flood plains of the rivers in the dry zone. When the river flood the saucer like depressions colled villus becomes inundates with overflow during the rain season. The most extensive villus are found in the Mahaweli flood plains around Polonnaruwa, Tamankaduwa, Maduru oya and Manampitiya. Fimbristylis, Cyperus and Typha are also common. This ecosystem has a diversity of large grazing and browsing animals the deer, buffalo and elephant.
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