Impatiens latiflora Hook. fil. & Thoms., J. Proc. Linn. Soc., Bot. 4: 139 1860.;

India (NE-India, Assam, Arunachal Pradesh, Nagaland, Meghalaya, Sikkim), Bhutan as per CoL;

Annual herbs, about 15-50 cm tall. Stems erect, simple or branched, glabrous or pubescent. Leaves alternate, crowded towards the apex, lanceolate-elliptic to narrow lanceolate, about 7-18 x 3-5 cm across, base cuneate to attenuate, margins shallow crenate with few filiform appendages, apex acuminate, lateral veins about 6-14 on either side of the midrib, green above and grayish paler beneath, pubescent both above and beneath, petiole slender, pubescent, about 1-4 cm long, stipular glands absent. Inflorescence resupinate, axillary 2-3 flowered, in the upper parts of the plant. Flowers bisexual, zygomorphic, pale rose, purplish to red, about 6 cm across, pedicel slender, stout, pubescent, about 1-2.5 cm long, bracts linear lanceolate, pubescent, about 1-3 mm long, sepals 3, imbricate, 2 lateral ones flat, ovate, apex acute, about 8 mm long, posterior sepal (Lip) large, petaloid, shallow or obliquely navicular, about 2.5-5 cm long, spurred, spur abruptly constricted, erect, filiform, about 2-4.5 cm long, upper standard petal, keeled or cucullate, suborbicular-obcordate, dorsally crested, apex acutely pointed, about 1.5-1.3 cm across, lateral ones (wings or alae), reddish voilet, fused in pairs, basal lobes elliptic-oblong, distal lobes, elliptic-obovate, basal and distal lobes separated by depression, apex emarginate. Stamens 5, anthers bi-locular. Ovary 5 locular, superior. Fruit indehiscent, capsule, narrow fusiform, swollen in the middle, constricted at both ends, glabrous.
Eastern Himalayas, altitude about 900-1300 m.
(Attributions- Ganeshaiah, K. N., UAS, Bangalore, India. Kailash, B. R., ATREE, Bangalore, India. Royal Norwegian Embassy grants. Indian Bioresource Information Network (IBIN), Department of Biotechnology, New Delhi, India as per India Biodiversity Portal);

Impatiens sp. for ID plz.
Loc.: Near Baderdewa Gate, ca 300 m (On border of Assam and Arunachal Pradesh)
Date: April 2009
Growing wild.

I had the opportunity to visit a part of Arunachal Pradesh in 2001-2003. It is a Botanist’s paradise. Unfortunately I could not lay hand on any book which discusses flora of Arunachal Pradesh with coloured plates. Army persons are best for recording flora of the area but you require professionals for identifications. Burkill’s book on history of botany in India is a testimony to my conviction.

How about Impatiens siangensis?

Impatiens latiflora Hook. fil. & Thomson

I. latiflora


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