Terrestrial herb, less than 10 cm. Stem sappy, creeping, hirsute. Leaves equal or subequal in a pair; petiole 0.5-4 cm long, hirsute; blade membranaceous when dry, elliptic or oblong-ovate, 2-7 x 1.5-4 cm, margin crenate-serrate, apex acute or obtuse, base rounded or subcordate, above and below hirsute. Flowers solitary; epedunculate; pedicel 2-5 cm long, hirsute. Calyx green, lobes nearly free, lanceolate, slightly narrowed towards base, 0.6-0.9 x 0.15-0.3 cm, margin entire or with some teeth, apex acute, outside hirsute, inside hirsute, 4 lobes subequal, dorsal lobe smaller; corolla oblique in calyx, white with purple lines in tube, 2.4-2.5 cm long, tube obliquely infundibuliform, 2-2.5 cm long, base spurred, 0.3 cm wide, middle curved, not ventricose, throat not or hardly contracted, 0.6-1 cm wide, outside villous, inside with a ring of glandular hairs in throat, limb 2-2.5 cm wide, lobes subequal, spreading, ventral lobe oblique, suborbicular, 0.6-1 x 0.6-1 cm, margin crenate-serrate; stamens slightly exserted, inserted on base of corolla tube; ovary ovoid, 0.25 x 0.15 cm, hirsute, style ca. 1 cm long, pubescent with glandular hairs, stigma saucer-shaped or obscurely 2-lobed Mature capsule globose, 0.5 x 0.5 cm.
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