Ver″vain (?), n. [OE. verveine, F. verveine, fr. L. verbena, pl. verbenae sacred boughs of laurel, olive, or myrtle, a class of plants; cf. verbenaca vervain. Cf. Verbena.] (Bot.) Any plant of the genus Verbena.
Vervain mallow(Bot.), a species of mallow (Malva Alcea) with rose-colored flowers.