Acta Phytotax. Sinica 2: 81, t. 7 (1952)
Verified by:
Shrub or tree, 1.5-8m; young shoots ± densely rufous- to white-stellate-tomentose and glandular. Leaves elliptic to oblanceolate, (7—)10—15 x 2.8-6cm, 2-2.5 x as long as broad, apex rounded, apiculate to acute, base rounded, both surfaces ± glabrous when mature; petioles l-2cm, soon glabrous. Inflorescence 5-15-flowered; rhachis up to 27mm; pedicels 17-30mm, brownish stellate-tomentose. Calyx c.2mm, lobes fleshy, glabrous though with sessile glands on the margin. Corolla campanulate, nectar pouches lacking, white to pink, with or without a purplish basal blotch, 35 -50mm. Ovary densely to very sparsely brownish stellate-tomentose, also sometimes with sessile glands. Capsule 20-30 x 3-4mm, strongly curved.
China (SW Sichuan)
Forests, alpine slopes
R. cookeanum Davidian, Rhododendron Yearbook 16: 105 (1961). Type: China, SW Sichuan, Muli, Muti Konka, 12000ft, v-vi 1932, Rock 23698 (holo. E). lc: Acta Phytotax. Sinica 2: 81, t.7 (1952).
Chamberlain, D.F. (1982) A Revision of Rhododendron II. Subgenus Hymenanthes. Notes From the Royal Botanic Garden Edinburgh 39(2):271