Botanical Survey of India | Flora of India

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Impatiens longipes Hook. f. & Thomson in J. Linn. Soc., Bot. 4: 151. 1860; Hook. f., Fl. Brit. India 1: 473. 1879 & in Rec. Bot. Surv. India 4: 16. 1905; Biswas, Pl. Darj. Sikkim Himal. 1: 209. 1966.


Herbs, up to 2 m high; stems branched, glabrous. Leaves alternate, broadly lanceolate to obovate, attenuate into petiole at base, long-acuminate at apex, crenate along margins, 3.3 - 13 x 1.2 - 3.5 cm, membranous, black on drying; lateral nerves 5 - 10 pairs; stipules absent. Inflorescence axillary, a raceme, 3 - 6-flowered; peduncles slender, solitary, up to 1.3 cm long. Flowers twisted in various ways, yellow, sometimes spur curls over; pedicels seriate on peduncle; bracts subulate, caducous. Lateral sepals 2 - 4, ovate, or ovate-lanceolate, long-acuminate, ca 3 mm long. Lip bucciniform, spurred; spur gradually tapering, hooked, ca 1.8 cm long. Standard orbicular. Wings with basal lobes ovate-triangular; distal lobes long, narrow twisted. Capsules linear, 0.7 - 2.5 cm long.

Fl. & Fr. July - Oct.

Distrib. India: E. Himalayas, ca 2400 - 3100 m. W. Bengal, Assam, Sikkim and Arunachal Pradesh.

Nepal and Myanmar.




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