The present paper provides a comprehensive inventory of 186 alien plant species Tripura, their invasion status on natural forested areas. Asteraceae is the most dominant family with 31 followed by 56.98 % reported from PAs Tripura were American origin. Life form analysis revealed presence 56.98% herbs, 16.12 trees and 9.67 shrubs. 106 have been used in traditional medicines, 66 potential orname...