Dwarf perennial with a slender rhizome. Stems 5-10 cm ascending or procumbent, with short white eglandular hairs, purplish. Leaves imbricate at least above, reniform to orbicular, 5-8 x 10-15 mm, crenate, truncate or broad cuneate, white eglandular tomentose on both surfaces; venation often purplish; petiole on lower leaves to 1 cm, less above. Flowers on short peduncles, few or solitary in leaf axils, sessile. Bracts linear-filiform, 6-8 mm. Calyx 10 mm, green, ± straight, white-villous with eglandular hairs, slightly bilabiate; teeth of lower lip c. 4 mm, narrow linear, acuminate; teeth ± erect after anthesis; tube glabrous within or with few pilose hairs. Corolla white, c. 20 mm with a very slender tube c. 11 mm long and a narrow infundibuliform upper part; lips very short, c. 2-2.5 mm.