Botanical Survey of India | Flora of India

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Impatiens sulcata Wallich in Roxb., Fl. Ind. 2: 458. 1824; Hook. f. & Thomson in J. Linn. Soc., Bot. 4: 129. 1860; Hook. f., Fl. Brit. India 1: 469. 1875 incl. var. minor& in Rec. Bot. Surv. India 4: 5. 1904; Blatter, Beaut. Fl. Kashmir 1: 71. 1927; Biswas, Pl. Darj. Sikkim Himal. 1: 206. 1966; H. Hara in Fl. E. Himal. 3: 179. 1975. I. gigantea Edgew. in Trans. Linn. Soc. London 20: 38. 1846; Hook. f., Fl. Brit. India l.c.


Herbs, annual, erect, 0.2 - 3 m high, glabrous; stems stout, fistular, grooved. Leaves usually opposite or whorled, ovate-elliptic to elliptic-oblong or oblanceolate, attenuate into petiole or cuneate at base, acuminate at apex, shallowly crenate-serrate along margins with the upper teeth gland-tipped, 7 - 18 x 2 - 2.5 cm, green, paler beneath, finely pubescent; lateral nerves 6 - 11 pairs; stipules pulvinate. Flowers axillary, 2.5 - 3.7 cm long, pink, purple or dark-crimson; bracts broad, with ca 1 mm long appendage, ca 6 x 3 mm; peduncles 4 - 15 cm long, glabrous; pedicels slender, umbelled. Lateral sepals obliquely ovate, 6 - 8 x 3 - 4 mm, with ca 2 mm long appendage. Lip bucciniform, 1.2 - 1.6 x 1 - 1.5 cm; spur abruptly constricted, short, 5 - 8 mm, inflexed , spotted. Standard bilobed, keeled on dorsal side. Wings ca 2.5 cm long, orange-streaked; basal lobes broad, ca 1 x 0.8 cm, with an appendage; distal lobes linear-oblong. Capsules elongate, narrowly clavate, 2.5 - 3 cm long; seeds ca 8 mm across, rugose.

Fl. & Fr. July - Oct.

Distrib. India: Temperate Himalayas, 2000 - 3900 m. Jammu & Kashmir, Himachal Pradesh, Uttar Pradesh, Punjab, W. Bengal and Sikkim.

Nepal, Tibet, Bhutan and Pakistan.

Notes. Specimens with smaller leaves and in fundibular lip designated as var. minor by J.D. Hooker (Fl. Brit. India 1: 469. 1875) hardly differ from the typical species.

Chromosome no. 2n = 20 (Khoshoo, T.N. in Curr. Sci. 24: 223 - 424. 1955).





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