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Compact densely branched shrub, 1-2 m; young shoots covered with adpressed flattened bristles. Leaves of two kinds; spring leaves deciduous, 3-8 x 1-2.5 cm, elliptic-lanceolate to oblanceolate, apex acute, mucronate; both surfaces with scattered adpressed shining brown bristles, lower surface pale; summer leaves as for the spring leaves; petioles and pedicels covered with loosely adpressed bristles. Pedicel indumentum as for petioles. Flowers fragant; calyx 5-8 mm, lobes ovate; corolla rose to pale lilac-purple, with flecks, broadly funnel-shaped, 35-40 mm; ovary densely covered with adpressed hairs, style glabrous or pilose towards base. Flowering May. Royal Horticultural Society (1997)
Distribution Japan Tsushima North Korea South Korea
Habitat to c.1,100 m
RHS Hardiness Rating H5
Conservation status Data deficient (DD)
R.yedoense is the name given by Maximowicz in 1886 to a double-flowered garden form of an azalea that grows wild in Korea. Unfortunately this azalea was not described as a species until many years later and must therefore be treated as a variety of its own cultivated offspring:
R. poukhanense Lévl.
R. coreanum Rehd
Flowers double; calyx to 15mm.
Only known in cultivation.