Botanical Survey of India | Flora of India

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Impatiens edgeworthii Hook. f., Fl. Brit. India 1: 476. 1875 & in Rec. Bot. Surv. India 4: 5. 1904; H. Hara in H. Hara & Williams, Enum. Fl. Pl. Nepal 2: 78. 1979.


Herbs, annual, robust, glabrous. Leaves ovate-lanceolate, to ovate or ovate-elliptic, base attenuate towards base, acuminate at apex, serrate to crenate along margins with lowermost teeth (1 - 2 mm) filiform, 5 - 15 x 1.5 - 7.5 cm, glabrous; lateral nerves 6 - 14 pairs; petiole 0.5 -7 cm long. Flowers 2.5 cm, yellow; bracts at times whorled, lanceolate, 2 mm long; peduncles 2.5 - 7 cm long; pedicels sometimes whorled. Lateral sepals ovate, acute, ca 3 x 2 mm, midnerve prominent. Lip bucciniform, 1.2 - 1.5 cm long, 1 - 1.2 cm deep, spurred; spur gradually constricted, 0.8 - 1 cm long. Standard cucullate, emarginate, ca 1 x 1.4 cm (when flattened). Wings with a globular dorsal auricle and a lobular structure towards sinus; basal lobes obovate, 6 x 5 mm; distal lobes oblong with ligulate apex, lobular structure oblong, ca 6 x 2 mm. Stamens 5, filaments short and broad. Carpels 5. Capsules erect, linear, 2.5 - 2.9 cm long.

Fl. & Fr. Aug. - Oct.

Distrib. India: W. Himalayas. Jammu & Kashmir, Himachal Pradesh and Uttar Pradesh.

Nepal.

Chromosome no. 2 n = 12 (Khoshoo, T.N. in Curr. Sci. 24: 423 - 424 . 1955).




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