Pistia is a genus of
aquatic plant in the arum family Araceae with Pistia stratioles as the onlyspecies often called water cabbage, Nile cabbage or shell flower (Quattrocchi,
2000).
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| Clarias gariepinus |
It was earlier discovered
in Africa from Nile near Lake Victoria as a free floating aquatic plant found
growing abundantly in Tropical and sub- tropical region of the world and
detests frost in the temperate during winter. Water cabbage is a perennial
monocotyledon with thick - soft leaves that form a rosette and one of the least
favoured floating macrophytes for herbivores (Singh, 1977).
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