Rhododendron subanseriense

Billeder af Rhododendron subanseriense

Beskrivelse

R. subanseriense (Thomsonia). Buske eller små træer til 14 m. Blomsterne kommer i februar-marts og er lyserøde med lilla pletter. Fundet i mosbegroet regnskov fra 2700 til 3000 m. Vokser i NØ-Indien. CH418.
Hans Eiberg

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Ikke i ARS og Flora of China
RBGE Herbarium; R. subanseriense
Gode foto på Marc Colombels side

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Trees and Shrubs Online; R. subansiriense D.F. Chamb. & P.A. Cox

Shrub or tree, up to 14 m; bark smooth and peeling; young shoots apparently tomentose. Leaves 7–10.5 × 2–3.5 cm, oblong, base more or less rounded, upper surface glabrous, lower surface with epidermis lacking papillae, with numerous red punctate hair bases on the veins, each with the vestige of fasciculate hairs, otherwise glabrous; petioles glabrous. Flowers up to 15, in a dense truss; calyx 4–5 mm, cupular; corolla fleshy, scarlet, with a few purple flecks, tubular-campanulate, with nectar pouches, up to 40 mm; ovary densely tomentose, lacking glands, style glabrous. Flowering April. Royal Horticultural Society (1997).

Distribution  India Arunachal Pradesh

Habitat 2,600–2,800 m

RHS Hardiness Rating H5

Conservation status Critically endangered (CR)

This species is at present only known from the Subansiri district in NE India. In cultivation it produces a very early leaf flush that is often affected by late frosts. While it will grow outside in Britain it rarely flowers. Royal Horticultural Society (1997).