Ann. Mus. Lugduno-Batavum 2:165 (1865-66)
Verified by:
Low, much-branched shrub; shoots slender, clothed with adpressed flattened chestnut-brown hairs. Leaves monomorphic, deciduous, crowded at end of short branchlets, obovate-oblong or elliptic, 0.3-1 x 0.3-0.5cm, 1-2 x as long as broad, apex obtuse or acute, base cuneate, upper surface with scattered strigose brown hairs and pustules, lower surface with hairs mainly on midrib, with pustules; petioles 1mm, strigose. Inflorescence l(-2)~fiowered; pedicels 3mm, strigose, hidden beneath the bud scales. Calyx small. Corolla short, funnel-form, a 17mm, rose-pink; tube with outer surface glabrous, papillate within. Stamens 5, papillate for most of their length. Ovary densely covered with pale flattened hairs; style glabrous. Capsule unknown.
Japan (Central and Southern)
Azalea serpyllifolia A. Gray, Perry Jap. Exped.2: 315 (1857). Rhododendron serpyllifolium var. albiflorum Makino, Bot. Mag (Tokyo) 22:57 (1908). Described from the western mountains of Japan.
Chamberlain, D.F. & Rae, S.J. (1990) A Revision of Rhododendron IV Subgenus Tsutsusi. Edinburgh Journal of Botany 47(2):129