Densely hairy perennial, forming low spreading dense clumps. Petioles 1-2 cm long. Lamina c. 1.5-2.5 × 1-1.5 cm, ovate, grey-tomentose above and below, ± crenate; base subcordate or cordate; apex obtuse. Infl. terminal, spike-like, spreading to suberect, diffuse. Calyx 5-7 mm long, tomentose, often bluish; teeth lanceolate. Corolla 9-11 mm long to apex of erect upper lip, blue or mauve-blue with purplish dots on lower lip; tube ± curved, > calyx, tomentose outside; upper lip with 2 rounded lobes, tomentose outside; lower lip glabrous towards apex, otherwise tomentose. Anthers violet-blue. Style violet-blue towards apex. Nutlets c. 2 mm long, oblong, dark brown, obtusely ridged down central side.