Botanical Survey of India | Flora of India

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Impatiens puberula DC., Prodr. 1: 687. 1824; Hook. f., Fl. Brit. India 1: 470. 1875 & in Rec. Bot. Surv. India 4: 17. 1905; Biswas, Pl. Darj. Sikkim Himal. 1: 206. 1966; H. Hara in Fl. E. Himal. 1: 196. 1966 & 2: 75. 1975.


Herbs, up to 1 m high; stems slender, occasionally branched, finely pubescent to glabrous. Leaves alternate, oblong to elliptic or lanceolate-elliptic, shortly attenuate into petiole at base, acuminate at apex, shallowly crenate to crenate-dentate along margins, 6 - 13 x 2.3 - 4.7 cm, pubescent above, lower surface white; lateral nerves 6 - 10 pairs; petiole 0.5 - 4.5 cm long; stipules absent. Flowers in axils towards apex, solitary, 2.5 - 3.5 cm long, reddish-violet; bracts subulate, basal or absent, ca 2 mm long; pedicels up to 4 cm long. Lateral sepals ovate to lanceolate, acuminate, 6 - 10 x 2.5 - 3 mm. Lip conoidal, rather small, pinkish-white; spur abruptly constricted, filiform, in curved, 1.5 - 2.2 cm long. Standard suborbicular to obcordate, notched, dorsally crested, 1 - 1.8 x 1.2 - 2 cm. Wings 1.5 - 2.5 cm long, dark-purple; basal lobes elliptic-reniform; distal lobes transversely elliptic or obovate. Capsules linear, 4 - 5 mm long, glabrous.

Fl. & Fr. June - Oct.

Distrib. India: W. Bengal, Sikkim, Arunachal Pradesh and Meghalaya.

Nepal and Bhutan.

Chromosome no. 2n = 28 (Malia, S.B. et al. in Taxon 26: 443 - 452. 1977).




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