ETYM Latin See Vervain.
Any of numerous tropical or subtropical American plants of the genus Verbena grown for their showy spikes of variously colored flowers; SYN. vervain.
Any plant of the genus Verbena, family Verbenaceae, of about 100 species, mostly found in the American tropics. The leaves are fragrant and the tubular flowers arranged in close spikes in colors ranging from white to rose, violet, and purple. The garden verbena is a hybrid annual.