Prostrate to ascending herb, often rooting from lower nodes; stems with short, antrorse simple hairs mainly along ridges. Leaves ovate, to c. deltoid, 0.5–2 cm long and wide, upper surface glabrous or with a few antrorse hairs near margin, lower surface with antrorse hairs mostly on veins, and sessile glands between veins, apex c. obtuse, base cordate or truncate, margins crenate-serrate or c. entire; petiole 3–18 mm long. Calyx often tinged purple, 2–3 mm long (to 5 mm in fruit), c. glabrous, or with scattered, short simple hairs; corolla 5–7 mm long, white, mauve with white markings, or wholly mauve, often spotted orange in throat, abaxial lip up to twice as long as adaxial lip. Seeds rugose, c. 0.8 mm long. Flowers mostly Oct.–Feb.