Impatiens tropaeoliflora Griffith ex Hook. f., Fl. Brit. India 1: 472. 1875 ('tropaeolifolia').

Herbs, annuals, ca 30 cm high, nearly glabrous; stems stout, diaphanous, flexuous, succulent. Leaves alternate, oblong or occasionally oblanceolate, slightly attenuate into petiole at base, acute at apex, crenate-serrate along margins, crenations with bristles, 3.5 - 8 x 1.7 - 3.6 cm, glabrous or sparsely puberulous above, glaucous beneath; petioles 0.6 - 1.9 cm long. Flowers ca 2.5 cm long, yellow with dull-red tips; bracts ovate, acuminate, ca 4 mm; peduncle 0.9 - 1.5 cm long, apparently not stiff. Lateral sepals orbicular-ovate, acuminate, transparent. Lip bucciniform; spur abruptly constricted, filiform, incurved, ca 2.5 cm long. Standard fleshy, orbicular, with a dorsal spur. Wings unevenly bilobed, 2.5 cm long; basal lobes entire; distal lobes irregularly toothed; dorsal auricle semiglobular. Capsules linear, acute.

Fl. & Fr. July - Sept.

Distrib. India: E. Himalayas. Sikkim, Arunachal Pradesh, Meghalaya and Mizoram (Mishmi hills).

Endemic.