Perennial with arching aerial stolons and few decumbent to suberect stems 5-11 cm. Stems sparingly eglandular-pubescent. Leaves with distinct petioles 10-20 mm; lamina obovate to ovate, 20-30 x 10-25 mm, obtuse or shortly cuneate at base, rounded at apex, margin with 5-7 ± distinct but shallow crenations per side, scarcely to distinctly lobed at base, very sparingly but evenly covered with eglandular hairs and sessile glands, and with sparse eglandular hairs on veins. Inflorescence 3-6-flowered, subsecund. Bracts 2-4 mm, linear. Pedicels 4-8 mm in flower, 9-10 mm in fruit, sparingly hairy. Calyx infundibular-campanulate, 6-6.5 mm in flower, c. 8 mm in fruit; tube 2.7-3 mm in flower, 4-4.5 mm in fruit; lobes 2.5-3 mm, suberect, scarcely accrescent in fruit and remaining ± erect, subglabrous (especially after flowering) apart from a few sessile glands on lobes and scattered hairs on veins. Corolla c. 14 mm, glabrous; upper lip purple, lower lip white. Anthers orange. Capsule ovoid to subglobose, 4-4.5 x 3 mm. Seeds lenticular, 0.3-0.4 x 0.15-0.2 mm, light brown, with a tiny projection at each end.