Perennial herb, freely branched, 0,2—0,5 m tall; stems decumbent, rooting at the lower nodes, shortly pubescent. Leaves petiolate; blade drying thin-textured, ovate to sub rotund, 40—65 x 40—60 mm, sparingÂly pubescent, dark green, under-surface with numerous brown to reddish gland-dots, apex obtuse to rounded, base truncate to abruptly attenuate, margin obscurely crenate-dentate; petiole 20—30 mm long. Inflorescence simple or sparingly branched near the base; flowers in sessile, usually 3-flowered cymes, forming 2—6-flowered verticils 10—30 mm apart. Calyx up to 10 mm long in fruiting stage, glandular-hispidulous. Corolla mauve to violet with darker blotches on the lips; tube 12—15 mm long, expanding abruptly and forming a saccate base about 4 mm deep; narrowing gradually to 1,5—2 mm at the throat; upper lip 5 mm long; lower lip concave, 4 mm long. Stamens free, distinctly of 2 lengths, upper pair 1,5 — 2 mm long, lower pair 4—5 mm long.
