the mint family of flowering plants, with 236 genera and more than 7,000 species, the largest family of the order Lamiales. It is important to humans for herb plants useful for flavour, fragrance, or medicinal properties. Most members of the family have square stems; paired, opposite, simple leaves; and two-lipped, open-mouthed, tubular corollas (united petals), with five-lobed, bell-like calyxes (united sepals).