Botanical Survey of India | Flora of India

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Impatiens wallichii Hook. f. in Rec. Bot. Surv. India 4: 20. 1905; H. Hara in Fl. E. Himal. 3: 79. 1975. I. discolor sensu Hook. f., Fl. Brit. India 1: 471. 1875, p.p. non DC. 1824.


Herbs, 1 - 15 m high; stems decumbent, rooting at lower nodes. Leaves alternate, ovate-lanceolate to ovate or ovate-elliptic, slightly attenuate into petiole at base, long-acuminate at apex, shallowly crenate along margins with filiform appendages on crenations, 3.2 - 8.7 x 1.8 - 2.8 cm, membranous, glabrous above and beneath but finely pubescent on midnerve and lateral nerves; lateral nerves 4 - 8 pairs; petiole 0.5 - 1.5 cm long, glabrous. Racemes 3-flowered. Flowers 3 - 4 cm, yellowish-white; bracts ovate-lanceolate, 3 - 4.5 mm long, gland-tipped; peduncles glabrous, 2 - 4 cm long, glabrous; pedicels 1 - 1.3 cm long, glabrous. Lateral sepals ovate-lanceolate, glandular on one margin, 3 - 5 x 2.5 - 3 mm. Lip bucciniform, pointed at apex, 1.5 - 1.7 x 2.3 - 2.5 cm, spurred; spur abruptly constricted, filiform, 4 - 5 mm long. Standard caudate-acuminate, many-nerved. Wings bilobed; distal lobes ovate-oblong. Capsules linear-oblong, acuminate, 0.5 - 1.5 cm long.

Fl. & Fr. July - Oct.

Distrib. India: E. Himalayas, 3000 - 3700 m. W. Bengal (Darjeeling), Sikkim.

Nepal.




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