1. Any of various plants of the genus Verbena, chiefly of the Americas, that have opposite leaves and flowers with five-lobed corollas and are used medicinally or cultivated for their showy spikes of variously colored flowers. Also called vervain.
2. Any of several similar plants, such as the lemon verbena.
[Latin verbēna, sacred foliage; see wer-2 in the Appendix of Indo-European roots.]
(click for a larger image)verbena
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