labiate

a. [ NL. labiatus, fr. L. labium lip. ] (Bot.) (a) Having the limb of a tubular corolla or calyx divided into two unequal parts, one projecting over the other like the lips of a mouth, as in the snapdragon, sage, and catnip. (b) Belonging to a natural order of plants (Labiatæ), of which the mint, sage, and catnip are examples. They are mostly aromatic herbs. [ 1913 Webster ]