Rhododendron hyacinthosmum Sleumer

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'Rhododendron hyacinthosmum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-hyacinthosmum/). Accessed 2020-08-14.

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New article for Trees and Shrubs Online.

Recommended citation
'Rhododendron hyacinthosmum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-hyacinthosmum/). Accessed 2020-08-14.

Shrub to 3 m, epiphytic or terrestrial; young stems at first stellate-scaly, the scales from epidermal tubercles which make the stems rough to the touch. Leaves 6-9 x 3.5-5 cm, broadly elliptic to ovate, the apex broadly obtuse to rounded, the margin flat or slightly recurved, narrowly cartilaginous, the base rounded to cordate; the upper surface at first finely brown-scaly, becoming glabrescent but remaining rather rough, midrib raised at the very base, impressed above, lateral veins 3-7 pairs slightly raised; lower surface with the midrib prominent and raised, the laterals mostly obscure, hardly raised, scales brown-stellate to dendroid from pronounced epidermal tubercles, moderately densely set. Flowers 2-5 per umbel, horizontal to half hanging; calyx a 5-lobed, hairy and scaly disc, corolla white with a pink flush in bud and pink patches at the base of the lobes in the mouth, powerfully scented like hyacinths, glabrous outside; stamens 10, irregularly disposed on the lower side of the mouth; ovary white-hairy, style hairy only for about 4/5 of its length, glabrous at the top. Royal Horticultural Society (1997)

Distribution  Papua New Guinea Milne Bay Province

Habitat 1,800-2,300 m

RHS Hardiness Rating H2

Conservation status Least concern (LC)

An attractive species discovered by the Rev. Canon N.E.G. Cruttwell in the Daga country where he worked as a missionary and distributed via the Australian Rhododendron Society. Royal Horticultural Society (1997)

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