Terrestrial suffrutescent herb, 2-50 cm long. Stem subwoody towards base, creeping, strigillose at apex, glabrescent below. Leaves strongly unequal in a pair; petiole (0.4-)1-2.5(-4) cm long, villous; blade papyraceous when dry, oblong-ovate or oblanceolate, narrowed towards base, larger blade 3.2-9.5 x 1.7-4.5 cm, margin crenate-serrate, apex acute or obtuse, base rounded or subcordate, above tomentose, below strigillose, especially on midrib and veins. Flowers 3-10, in fascicles; pedunculate; pedicel 0.6-1.7 cm long, villous. Calyx green, lobes free, 4erect, subequal oblong-lanceolate, narrowed towards base, 0.4-0.6 x 0.1-0.15 cm, dorsal one curved around spur, somewhat smaller and narrower, margin with some teeth, apex acute, outside villous, inside villous above and glabrous below; corolla oblique in calyx, white, 1-1.4 cm long, tube infundibuliform, 0.8-1.1 cm long, base shortly spurred, 0.15 cm wide, middle gradually widened to throat, slightly bent downwards, throat not ventricose, 0.4 cm wide, outside villous, inside glabrous, limb 1-1.1 cm wide, lobes subequal, spreading, rounded, 0.3-0.4 x 0.3-0.4 cm, margin entire; stamens included, inserted on base of corolla; ovary globose, 0.1 x 0.1 cm, softly hirsute, style ca. 0.6 cm long, glabrous, stigma stomatomorphic. Mature capsule globose, 0.3 x 0.3 cm.