Rhododendron camtschaticum
A decideous, prostrate species being fully hardy in the garden. Branchlets with tapering bristles. Leaves obovate. Leaf upper surface glabrous. Margins of leaves and veins on leaf lower sides with bristles. With mucron. Pedicel densely covered by bristles. Calyx lobes long, obovate, bristly with some glandular hairs along the margins. Corolla rotate-campanulate, with 5 lobes, rose-purple with blotch. Outer surface of corolla and corolla margins pubescent with fine, colourless hairs. Inner surface glabrous. The proximal parts of the 10, unequal, purple stamens and the ovary densely covered by fine, colourless bristles. Style glabrous, purple, with upward turning, colourless and disc-shaped stigma. Capsule about 10 mm, hairy. Seeds 0.9 – 1.3 mm long, with missing or strongly reduced floating sacs. Occurrence: The northernmost Pacific marginal areas, Sakhalin, Kamchatka, S Alaska etc. according to Flora of North America efloras org.