Kindly sponsored by
Peter Norris, enabling the use of The Rhododendron Handbook 1998
New article for Trees and Shrubs Online.
'Rhododendron × erythrocalyx' from the website Trees and Shrubs Online (treesandshrubsonline.
A natural hybrid between R. selense and R. wardii. Shrub, 1-2.5 m; young shoots stalked-glandular. Leaves 6-10 x 3.6-5 cm, obovate to oblong, upper surface glabrous, lower surface punctulate, otherwise glabrous. Flowers 4-10, in a lax truss; calyx 3-7 mm; corolla pale yellow or white flushed rose, with or without purple flecks and a basal blotch, campanulate to open-campanulate, 35-45 mm; ovary stalked-glandular, style glabrous or stalked-glandular for half its length. Flowering April-May. Royal Horticultural Society (1997)
Distribution China SE Tibet, NW Yunnan
Habitat 3,350-3,950 m
RHS Hardiness Rating H5
This hybrid is seen occasionally in gardens and is morphologically intermediate between the parents. It occurs with them in NW Yunnan, especially around the type locality (Beima Shan). Royal Horticultural Society (1997)