verbena Meaning, Definition & Usage

  1. noun any of numerous tropical or subtropical American plants of the genus Verbena grown for their showy spikes of variously colored flowers
    vervain.

WordNet

Ver*be"na noun
Etymology
L. See Vervain.
Definitions
  1. (Bot.) A genus of herbaceous plants of which several species are extensively cultivated for the great beauty of their flowers; vervain. ✍ Verbena, or vervain, was used by the Greeks, the Romans, and the Druids, in their sacred rites. Brewer.

Webster 1913