Impatiens uncipetala C.B. Clarke ex Hook. f. in Rec. Bot. Surv. India 4: 18. 1905; H. Hara in H. Hara & Williams, Enum. Fl. Pl. Nepal 2: 80. 1979.

Herbs; stems thickened at nodes. Leaves ovate-lanceolate, slightly attenuate into petiole, acute to acuminate at apex, crenate along margins with filiform appendages on crenations, lower surface white; petiole up to 4 cm long. Flowers 3 - 3.3 cm long; peduncles subterminal. Lateral sepals ovate, acuminate, ca 1 x 0.5 cm. Lip navicular, 1 - 1.2 cm long; spur abruptly constricted, almost annular, 2 - 2.8 cm long. Standard acuminate, ca 1.5 x 0.9 cm, green. Wings rose-tinged; basal lobes triangular-ovate; distal lobes ligulate; dorsal auricle short. Capsules linear, acute, 1.7 - 5.4 cm long.

Fl. & Fr. Aug.

Distrib. India; E. Himalayas, ca 1950 - 2600 m. Assam and Sikkim.

Nepal.