Botanical Survey of India | Flora of India

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Impatiens racemosa DC., Prodr. 1: 688. 1824; Hook. f. & Thomson in J. Linn. Soc., Bot. 4: 147. 1860; Hook. f., Fl. Brit. India 1: 479. 1875 & in Rec: Bot. Surv. India 4: 6. 1904; Biswas, Pl. Darj. Sikkim Himal. 1: 210. 1966; H. Hara, Fl. E. Himal. 1: 196. 1966. I. microsciadia Hook. f. in Rec. Bot. Surv. India 4: 16. 16. 1905.


Herbs, up to 1 m high; stems slender, branched, sometimes glandular above, glabrous. Leaves ovate-elliptic to elliptic-oblong or oblanceolate, sometimes smaller, attenuate into petiole at base, acuminate at apex, shallowly crenate or crenate-serrate along margins with poorly developed filiform appendages on crenations, 3.5 - 12 x 0.8 - 3 cm, green, paler beneath; petiole 0.8 - 3.5 cm long; stipular glands 2, large, rarely absent. Inflorescence a raceme, axillary, exceeding leaves, 6 - 10-flowered. Flowers 1.6 - 2.5 cm long, yellowish-white with reddish blotches; peduncles 3 - 8 cm long; bracts ovate, ca 3 mm long, with ca 2 mm long glandular filiform appendages; pedicels alternate on peduncles, 1 - 4 cm long, hairy. Lateral sepals falcate, ca 3 x 1 mm, usually with ca 3 mm long appendage, yellow. Lip shallowly navicular, shortly pointed, ca 2 x 5 mm, spurred; spur constricted, curved, 1.1 - 1.8 cm long. Standard orbicular, with an appendage, not spurred or crested, 4 - 5 mm long. Wings narrrow, pendulous, 0.7 - 1 cm long; basal lobes orbicular, 3 - 4 x 4 - 5 mm; distal lobes transversely semiovate to elliptic-ovate,broadly strap-shaped, shortly apiculate, 5 - 7 x 2 - 3 mm. Capsules linear or clavate, 0.5 - 1.8 cm, glabrous; seeds large, oblong, compressed, rugose.

Fl. & Fr. June - Oct.

Distrib. India: Jammu & Kashmir, Himachal Pradesh, Uttar Pradesh, W. Bengal, Sikkim and Meghalaya.

Nepal, Tibet and Malay Peninsula.

Chromosome no. 2n = 18 (Chatterjee, A. & A.R.K. Sastry in Nucleus 13: 177 - 200. 1970); 2n = 20 (Malla, S.B. et al. in Taxon 27: 53 - 61. 1977).





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