Botanical Survey of India | Flora of India

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Impatiens laevigata Wallich ex Hook. f. & Thomson in J. Linn. Soc., Bot. 4: 146. 1860; Hook. f.,Ft. Brit. India 1: 473. 1875 & in Rec. Bot. Surv. India 4: 30. 1905; H. Hara in H. Hara & Williams, Enum. Fl. Pl. Nepal 2: 79. 1979.


Undershrubs; stems branched, erect, woody below, glabrous. Leaves alternate, crowded together at top of stem, elliptic-oblanceolate to narrowly oblanceolate, attenuate or cuneate at base, acute to caudate-acuminate at apex, shallowly serrate along margins with teeth shortly appendaged, 5 - 12 x 2.5 - 5 cm, mid green above, pale green beneath; lateral nerves 5 - 12 pairs; petiole 1 - 6 cm long, often glandular. Flowers 1 - 4, clustered at top of stem, yellow; bracts two types, outer bracts larger, ovate-cordate, long, inner ones 6 mm long, yellow; peduncles slender, 1.2 - 2.5 cm long. Lateral sepals ovate, acuminate, 1.6 - 1.8 x 1.4 - 1.6 cm, greenish with brownish nerves. Lip navicular, 2.5 - 3 cm long, red inside, spurred; spur abruptly constricted, curved, 1.6 - 2.2 cm long, yellow. Standard semicucullate, 1.8 - 2 x 1.5 - 1.7 cm, yellow. Wings 2 - 3 cm long, yellowish or with brownish streaks, basal and distal lobes about equal in size; basal lobes broadly elliptic to kidney-shaped, 1.2 - 1.5 x 1 - 1.3 cm, entire; distal lobes broadly ovate with a slight emargination distally along margin, 1 - 1.5 x 0.8 - 1.2 cm, yellow with red spots. Capsules narrowly fusiform, ca 1.5 cm long, glabrous.

Fl. & Fr. July - Dec.

Distrib. India: E. Himalayas, ca 600 - 1500 m. Sikkim, Assam, Nagaland, Manipur and Meghalaya.

Nepal and Myanmar.




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