Botanical Survey of India | Flora of India

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Impatiens balfourii Hook. f. in Bot. Mag. 59: 698. t. 7878. 1903 & in Rec. Bot. Surv. India 4: 5. 1904.


Herbs, annual, 60 - 90 cm high; stems branched, glabrous. Leaves alternate, ovate-lanceolate, acute to long-acuminate at apex, abruptly cuneate at base, serrate along margins, 7.5 - 12.5 cm long, green above, paler beneath, finely pubescent on both sides; lateral nerves 6 - 12 pairs; petiole with two glands at base, up to 5 cm long. Flowers in subterminal racemes, white, pink or yellow; bracts ovate, acuminate, ca 4 mm long; peduncles 7.5 - 10 cm long, slender, 6 - 8-flowered. Lateral sepals 2, orbicular, mucronate, ca 4 mm across. Lip bucciniform, 2.5 - 2.9 cm long, gradually constricted into spur; spur swollen at tip, 1 - 1.5 cm long. Standard nearly rounded, emarginate, fleshy, white suffused with rose, keeled; keel red. Wings 2 - 2.8 cm long, 2-lobed; basal lobes rounded or more or less triangular, much smaller than the distal; distal lobes obovate, toothed (with 2 or 3 teeth) along inner margin. Capsules linear, erect, 2.5 - 3.5 cm long; seeds ovoid, ca 3 mm long.

Fl. June - Oct.

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

Pakistan.

Chromosome no. 2n = 14 (Khoshoo in Curr. Sci. 24: 423 - 424. 1953).




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