Impatiens viscosa Beddome in Madras J. Lit. Sci. ser. 2. 10: 68, t.7, f. 7. 1859; Hook. f., Fl. Brit. India 1: 453. 1874. I. ballardii; Beddome, Icon. 44, t. 192. 1868 - 74; Hook. f., Fl. Brit. India 1: 482. 1874.

Herbs, 12 - 30 cm high; stems succulent, often branched, rooting below. Leaves opposite, rarely alternate, elliptic-ovate, serrate, 2 - 6 x 0.8 - 3 cm, sparsely hairy above, glabrous below, glandular at base. Flowers in axillary and terminal subumbels, pink; peduncles 2.5 - 7 cm long; pedicels slender, 0.5 - 1.5 cm long. Lateral sepals ovate-subulate. Lip cymbiform; spur as long as or longer than wings, incurved, inflated at middle, subulate at tip. Standard orbicular, concave, obscurely keeled on dorsal side. Wings bilobed; distal lobes larger than basal ones, clawed, dorsal auricle filiform, enclosed in spur. Capsules ovoid, turgid, 7 - 10-seeded; seeds echinate.

Fl. & Fr. Aug. - Dec.

Distrib. India: Southern W. Ghats between 900 - 2000 m. Tamil Nadu and Kerala.

Endemic.

Chromosome no. 2n = 16,20 (Virendra Kumar & Subramaniam, Chr. Atlas Fl. Pl. Ind. Subc. 1: 87. 1986).