Any of various New World plants of the genus Verbena, especially one of several species cultivated for their showy spikes of variously colored flowers. Also called vervain.
Any of several similar plants, such as the lemon verbena.
[Latin verbēna, sacred foliage; see wer-2 in Indo-European roots.]
Main Entry: ver·vain Pronunciation: 'v&r-"vAn Function: noun : any of a genus (Verbena of the family Verbenaceae, the vervain family) ofplants including several (as V. hastata) formerly used as medicinal herbs