Impatiens uncipetala C. B. Cl. ex Hook. fil., Rec. Bot. Surv. India 4: 18 1905. ;
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E. Nepal to China (NW. Yunnan): China South-Central, East Himalaya, Nepal as per POWO;
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Common name: Hook-Petal Balsam
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Annual herbs, about 20-40 cm tall. Stems erect, slender, thickened at nodes, sparsely branched, glabrous. Leaves alternate, ovate-lanceolate, about 1.5-4 x 0.7-2 cm across, base cuneate to attenuate, margins crenate with few filiform appendages, apex acute to acuminate, lateral veins about 4-6 on either side of the midrib, green above and paler whitish beneath, petiole slender, about 1-3 cm long. Inflorescence resupinate, axillary or subterminal, 1-2 flowered, peduncles short. Flowers bisexual, zygomorphic, about 3-3.5 cm across, pedicel slender, about 0.5-1 cm long, sepals 3, imbricate, 2 lateral ones flat, small, ovate, apex acuminate, glabrous, about 10 x 5 mm across, posterior sepal (Lip) large, petaloid, navicular, about 10-12 mm long, spurred, spur abruptly constricted, somewhat annular, about 2-2.8 cm long, upper standard petal, suborbicular-obcordate, apex acuminate, green, about 15 mm long, lateral ones (wings or alae), fused in pairs, rose tinged, basal lobes ovate-triangular, distal lobes ligulate, dorsal auricle short. Stamens 5, anthers bi-locular. Ovary 5 locular, superior. Fruit indehiscent, capsule, narrow fusiform or linear, about 1.7-5.4 cm long, glabrous. Seeds many.
Eastern Himalayas, altitude about 1950-2600 m.
Assam, Mizoram, Sikkim, West Bengal
(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)
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These are two species – notice difference in colour and shape of lateral petals.
Image 1 looks closeness to Impatiens yui S.H.Huang and image 2 is Impatiens puberula DC.. We should ask to Dr. Gogoi regarding this. Researchgate.
Attached for all…………
Impatiens uncipetala.pdf
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References: POWO Catalogue of Life The Plant List Ver.1.1 IPNI Annotated checklist of Flowering plants of Nepal Flowers of India India Biodiversity Portal IBIS Flora
On the taxonomic identity and lectotypification of Impatiens uncipetala C.B.Clarke ex Hook.f.– RAJIB GOGOI*, WOJCIECH ADAMOWSKI , NORBU SHERPA & GEETAMANI CHHETRI- September 2016 Phytotaxa 273(3):207-211
