Erect, annual herb, c. 13 cm tall. Cauline leaves 6-8 x 4-6 mm, ovate, 4-lobed, with truncate base; terminal lobe obtuse-acute, lateral lobes acuminate, as long as broad, all antrorse. Flowering begins at node 2-3. Racemes lax. Floral leaves 6-7 x 4-5 mm, ovate-broadly ovate, 4-5 lobed, with truncate base; lobes acuminate, longer than broad; upper antrorse, lower patent. Flowers c. 8 mm long; pedicel c. 0.5 mm long. Calyx 4-4.5 mm long hairy, hairs of the same type as on leaves; lobes 1.5-2 x 0.5-1 mm, equal; tube c. 2 mm long. Corolla dorsally 5-7 mm long; tube 2.5-3.5 mm long, externally glabrous. Upper lip 2-3 mm long. Lower lip 2.5-4 mm long; lobes oblong, emarginate, erose-slightly notched, middle lobe largest 3 x 2 mm, left and right lobes unequal, left lobe 2 x 2 mm, right lobe 1.5 x 11.5 mm. Two anthers with unequal and two with equal awns, densely pubescent; hairs short equalling the longer awn. Capsule 2-2.5 x 8 mm, oblong, retuse, shorter than the calyces, ciliate at the upper part; cilia soft. Seeds 4-5 per capsule, oblong, acute.