Botanical Survey of India | Flora of India

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Impatiens tuberculata Hook. f. & Thomson in J. Linn. Soc., Bot. 4: 155. 1860; Hook. f., Fl. Brit. India 1: 478. 1875 & in Rec. Bot. Surv. India 4: 16. 1905.

Herbs; stems succulent, 60 - 90 cm high. Leaves whorled at ends of branches, elliptic-lanceolate or occasionally oblanceolate, gradually attenuate into petiole at base, acuminate at apex; crenate to serrate along margins; lateral nerves 7 - 12 pairs; petiole 0.5 - 1.5 cm long. Flowers ca 1 cm long, purplish. Lateral sepals ovate, acuminate, curved, ca 6 mm. Lip navicular, with an appendage, spurred; spur short. Standard orbicular, crested on back. Wings with basal lobes ovate; distal lobes narrowly ovate, but narrowed just above middle; dorsal auricles short. Capsules dumbel-shaped, obtuse, 0.4 - 1 cm long.

Fl. & Fr. Aug. - Sept.

Distrib. India: E. Himalayas, 3000 - 4300 m. W. Bengal and Sikkim.


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