Invasive Alien Plant Species of Varanasi District, their Source Region and Use Potential

Three years of extensive exploration study for invasive alien species in Varansi district has been summarized in this article. 120 important alien species are recorded with their legitimate botanical names, families, origin, habit, habitat and uses. Some important plants are Ageratum conyzoides L., A. houstonianum Mill., Alternanthera pungens Kunth., Argemone mexicana L., Chenopodium album L., Croton bonplandianum Baill., Eichornia crassipes solms, Lantana camara L., Parthenium hysterophorus L., Calotropis gigantea (L.) R. Br., Cassia occidentalis L., Cryptostegia grandiflora R.Br. etc.