Perennial, subglabrous plants. Stems 10−23 cm, rather thin, simple or paniculately branched, borne on rather thin, slightly creeping rhizome covered with squamous remmants of petioles. Basal leaves 0.5−3.7 × 0.4−3.4 cm, deeply cordate-ovate or triangular, acute, petioled; petiol 0.5−12 cm. Cauline leaves 0.3−2.5 × 0.3−2.3 cm, ovate or triangular, short-petioled; petiol 0.4−3.7 cm. Upper leaves 0.5−1.4 × 0.2−0.7 cm, acuminate, subsessile. Flowers recurved, solitary in axils of upper leaves, pedicelled and bracteates. Corolla 0.9−1.5 × 0.4−1.1 cm, violet, campanulate, bearded inside; corolla lobes 0.2−0.6 × 0.1−0.4 cm, triangular. Calyx lobes 0.3−0.9 × 0.1−0.4 cm, triangular, acute, covered with transparent bristles on broadened base. Appandages 0.1−0.5 × 0.1−0.3 cm, triangular-lanceolate, bristly, recurved, longer than calyx tube. Anthers orange. Style exserted. Ovary glabrous.