Fl. Rossica 1:46, t,31 (1784).
Verified by:
Dwarf shrub, 0.3-lm; young shoots sparsely tomentose. Leaves obovate to elliptic, 4-7.5 x 1.3-3cm, 2.2-3 X as long as broad, apex blunt to apiculate, base cuneate, upper surface glabrous, lower surface with a compacted fawn to brownish tomentum; petioles 0.5-lcm, sparsely velutinous. Inflorescence lax, 6-15-flowered; rhachis up to 35mm; pedicels pilose, 25-30mm in flower, up to 60mm in fruit; perulae usually persistent. Calyx 1 —2mm, pilose. Corolla broadly campanulate, whitish to yellow, sometimes flushed with pink, with greenish flecks, 30-35mm. Ovary densely dendroid-pilose; style glabrous. Capsule 15-20 X c.8mm.
NE Turkey & adjacent parts of USSR (Caucasia)
R. caucasicum Pallas var. stramineum W. Hooker, Bot. Mag. 62: t.3422 (1835). Type: a plant or the plate drawn from it (cited above), grown in Glasgow and flowering in iv 1835
Chamberlain, D.F. (1982) A Revision of Rhododendron II. Subgenus Hymenanthes. Notes From the Royal Botanic Garden Edinburgh 39(2):312