Rhododendron triflorum

Rhododendron triflorum Hook. f., Rhododendron Sikkim Himalaya 2: , pl. 19 1851. (syn: Azalea triflora (Hook. fil.) Kuntze; Rhododendron deflexum Griff.);

S-Tibet, Myanmar [Burma] (Kachin), Darjeeling, Chumbi, NE-India, Bhutan, Sikkim, Nepal as per Catalogue of Life;

Common name: Three-Flowered Rhododendron

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Evergreen or semi-deciduous shrub 1-5m; branchlets minutely scaly. Leaves ovate to lanceolate, 3.5-6.5×1.5-3cm, acute , base rounded, green and glabrous above, pale green or whitish beneath with minute scales; petioles 5-12mm.Racemes 2-3-flowered; pedicels 7-12mm, scaly. Calyx minute, obscurely 5-lobed, scaly. Corolla strongly zygomorphic, open funnel-shaped, 2-3cm, pale yellow, sometimes reddish blotched within. Stamens 10; filaments pubescent towards base. Ovary scaly. Capsules narrowly cylindric, c 1.3cm.

(attributions- Grierson A.J.C&Long D.G. Flora of Bhutan. Volume 2 part 1. Published by RBGE 1991 from Bhutan Biodiversity Portal)
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Rhododendron triflorum Hook.f. : 3 posts by 2 authors. Attachments (8)- around 700 kb each.

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References:
Catalogue of Life  The Plant List Ver.1.1  Tropicos  Flora of China  Flowers of India  India Biodiversity Portal  Bhutan Biodiversity Portal  Encyclopedia of Life (Specimen)  Dave’s Garden Rhododendron Species Botanical Garden  iNaturalist