Perennial, herbaceous or suffruticose herbs. Stems erect or ascending, leafy, with eglandular hairs, or with glandular hairs on inflorescence axis. Leaves petiolate or sessile, not divided, margins subentire to crenate-dentate. Inflorescence of pedunculate cymes or verticillasters, distant or condensed into spikes or heads. Calyx tubular or campanulate, 10-nerved, bilabiate or regular; tube within glabrous or pilose at throat; teeth 5, equal or unequal. Corolla of 1 spreading 5-lobed lower lip (the adaxial lip represented by 2 lobes at the base of the abaxial lip); tube short, not annulate within. Stamens 4, exserted, didynamous; thecae bilocular, becoming confluent, glabrous. Style exserted, not gynobasic; stylar branches unequal or subequal. Nutlets ovoid or obovoid, rounded, with a lateral oblique attachment scar, reticulate-rugose.