Strongly aromatic shrubs with an all-over indumentum of small adpressed stellate hairs. Stems quadrangular, stiffly erect. Leaves not divided (in ours), entire-margined, with or without younger leaves clustered in axils. Inflorescence spicate, simple or branched, borne on a long leafless peduncle. Bracts subtending 6-8 flowers in each verticillaster. Bracteoles present or absent. Flowers ± sessile. Calyx tubular, ± adpressed to axis, 13-15-ribbed, not bilabiate; tube not bearded within; teeth short subequal. Corolla exserted, blue-violet, bilabiate; upper lip bifid; lower lip 3-lobed. Stamens 4 included in corolla tube, dedinate; thecae bilocular becoming confluent and unilocular, bearded. Style oblong or subglobose. Nutlets oblong, smooth, glabrous.