Heterostemma alatum Wight & Arn., Contr. Bot. India 42 1834.;
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Indian Subcontinent to Myanmar: Assam, East Himalaya, India, Myanmar, Nepal, West Himalaya as per POWO;
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India (Himalayas, NE-India, Upper Gangetic Plains, Darjeeling), Sikkim, Nepal as per CoL;
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Wight Contrib. 42 ; branches with two lines of hairs, leaves elliptic-ovate oblong or lanceolate acuminate, nerves beneath winged, coronal processes ovate-lanceolate acuminate with a large ovate acute concave appendage on the surfaces. Wall. Cat. 8180 ; Dcne, in DC. Prodr. viii. 630.
CENTRAL and EASTERN HIMALAYA ; Kumaon, Royle ; Nepal, Wallich ; SIKKIM, alt. 2-6000 ft., J. D. H. KHASIA MTS., alt. 4-6000 ft., Lobb, J. D. H. & T. T.
Leaves 3-6 by 1.1/2-3.1/2 in., rather coriaceous, light green, base acute or rounded, rarely cordate, nerves 3-4 pairs ; petiole 1-2 in. Peduncles very short, stout ; pedi¬cels 1/4-1/2 in., flowers 1/2-3/4 in. diam., yellow. Follicles (immature) very slender, straight.
(Attributions- IBIS Flora (Flora of British India))
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Heterostema alatum: 1 high res. image.
Heterostema alatum
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References: POWO Catalogue of Life The Plant List Ver.1.1 IPNI GBIF (High resolution specimens) Annotated checklist of Flowering plants of Nepal Flora of peninsular India IBIS Flora (Flora of British India) Vietnam Plant Data Center Nature Library Swild
