Soft, erect or spreading, greyish shrub-let, 0,3—1,2 m tall. Leaves petiolate; blade orbicular to ovate, 15—50 x 15—45 mm, densely pubescent, soft to rugose, apex rounded to subacute, base cordate to rounded, margin irregularly crenate-dentate; petiole villous, 10—40 mm long. Inflorescence simple or branched, of few to many verticils, spaced below, more crowded above; verticils usually many-flowered, subglobose, about 20 mm in diam. Calyx densely hispid-villous, glandular; tube 6—8 mm long at flowering, enlarging slightly when mature; limb spreading, 9—11 mm in diam., 10—20-toothed; teeth ovate-deltoid, subulate or spine-tipped, 0,5 — 1,5 mm long, the additional intermediate teeth often smaller. Corolla purple or pinkish to pale mauve, 10—14 mm long; tube 7—9 mm long, exannulate; upper lip 3—5 mm long; lower lip 4—7 mm long.