Erect or decumbent, perennial succulent, 0.6-1.5 m long; basal leaves in dense cluster, stems annular. Leaves sessile to shortly petiolate, blade fleshy, broadly obovate 25-50 x 15-40 mm, base cuneate, apex obtuse, margins with few irregular teeth; both surfaces tomentulose, lower surface pale to yellow gland-dotted. Inflorescence terminal, rachis 80-350 mm long; verticillasters more than 10-flowered. Flowers pale mauve and white. Corolla 4-5 mm long; tube straight, expanding slightly towards throat; upper lip 1 mm long, lower lip concave, 2 mm long, both lips pubescent. Stamens free to base.