2019, Vol. 7, Issue 3, Part A

author(s)
Shiv Pratap Singh and Beena Kumari

abstract
A survey of invasive alien angiosperms of J. P. Nagar was made and we found a total richness of 24 species belonging to 14 families. Dicots represented 22 species and monocots 2 species. About 54.16% of these angiosperms were introduced from Tropical America and maximum number of angiosperms (6) were from the family Asteraceae. Parthenium hysterophorus L. shows highest frequency (69.23%) followed by Ageratum conyzoides (L.) L. (53.07%), Alternanthera ficoidea (L.) Sm. (42.30%), Sida acuta Burm.f. (39.16%) and Euphorbia hirta L. (36.15%). Many of the invasive alien species are of economic importance also, due to which some alien species, often cultivated (ornamental), may provide food, medicine, and fodder to the local communities.