Angiospermic Diversity of Karwapani Fresh Water Swamp Forest in Doon Valley, Uttarakhand

The present study enumerates floristic diversity of the Karwapani swamp forest in Doon valley, Uttarakhand. This study was conducted in the year 2002-2003. The plant diversity of Karwapani swamp forest is represented by 53 families, 130 genera and 155 species of angiosperms. The present study reveals low diversity of angiosperms when compared with Babu and Dakshini probably due to closed canopy of tree species. Dicots contributed approximately 83% of the floral diversity. The tree layer of the forest is dominated by Shorea robusta, which is associated with Mallotus philippensis, Mangifera indica, Syzygium cuminii etc., and the shrub layer is dominated by Ardisia solanacea, Asparagus adscendens, Calamus tennuis, Clerodendrum viscosum and Lantana camara while the herbaceous layer includes, Nasturtium officinale, Ageratum conyzoides, Oplismanus compositus, Pouzolzia pentandra and Mentha piperata.