Macrophytic species composition of five wetlands of Sonitpur district of Assam, India

The Sonitpur district is situated between 260 30’N to 270 02’N Latitudes and 920 17’E to 930 47’E Longitudes in the northern bank of river Brahmaputra covering an area of 5255.2 km2 (492145 ha) that accounts for 6.27% of the geographical area of the state. The five wetlands of Sonitpur district of Assam, India, were surveyed for their floristic compositions during the period of 2009 to 2011. The aquatic macrophytic species of these areas were documented. 213 plant species were recorded under 141 genera and 55 families from the wetlands. Family Poaceae contains maximum number of species followed by Cyperaceae and Asteraceae. Moist soil species (Ms) were found to be dominating habits followed by rooted emergent hydrophytes (Reh) and ecotone species (Eco). The most common life forms included geophytes (geo) hydrophytes (hydro) and chamaephytes (chamae).

Author(s): Sarada K Sarma and Bidhan Borah

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