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Herbs or undershrubs. Verticillasters in spike-like or paniculate inflorescences, slender or stout, terete or secund. Bracts linear to lanceolate, (in Mal. spp.) usually small. Calyx ovoid or campanulate, 5-toothed, teeth unequal. Corolla tubular, shortly exserted, straight or incurved; limb 4-or 5-lobed, obliquely 2-lipped, upper lip erect, notched, lower lip spreading, 3-lobed. Stamens 4, divergent or distant, often slightly unequal; anthers 2-celled, cells divaricate or at length confluent; filaments glabrous. Disk produced behind the ovary, oblique. Style subequally 2-fid with subulate lobes. Nutlets minute, ovoid, glandular and (in Mal. spp.) pubescent.
Cal regular, campanulate or broadly tubular, 10-nerved, its lobes triangular; cor almost regular, the tube exsert, gradually widened upwards, the upper lip shallowly 2-lobed, straight or up curved, the lower lip spreading, its 3 lobes short and rounded; stamens 4, straight or somewhat divergent, exsert, the lower pair the longer; nutlets oblong or ovoid; herbs or half-shrubs with small fls subtended by overlapping bracts in dense terminal and axillary spikes. 35, mainly Eurasia.
