Extinction and species-introduction are two major biodiversity crises of the current millennium. A species may become endangered and eventually extinct when death rate exceeds birth for a prolonged duration. The reasons may be natural or anthropogenic. Now-a-days the anthropogenic activities are prominent and causing extinction of many plant species of ecological and economic significance. Many species are facing tremendous pressure and are on the verge of extinction in Jammu and Kashmir, one of the global biodiversity hotspots in the world. In the present paper, an attempt has been made to document the threatened plants of the Jammu and Kashmir the number of which has increased in the past few decades. KEYWORDS: Extinction, Species, Threatened, Flora