Perennial herb, 0.12-0.50 m high; succulent, decumbent to erect; stems sparingly to densely villous; roots sometimes tuberous. Leaves petiolate, often viscid, obovate to elliptic-ovate, pubescent, base cuneate to attenuate, apex obtuse, margins obscurely few-toothed. Inflorescence terminal, rachis 70-150 mm long; verticillasters 6-flowered; bracts forming a 4-angled apical coma. Flowers mauve-purple. Calyx 6 mm long, enlarging after flowering. Corolla 10-20 mm long; tube slightly geniculate about middle and expanding towards throat; lower lip boat-shaped. Stamens united at base. Flowering time autumn, Dec.-May.