Rhododendron zaleucum I. B. Balf. & W. W. Smith

Shrubs or small trees, 1–3(–6) m tall; young shoots sparsely scaly. Petiole 7–13 mm, sparsely brown-scaly; leaf blade elliptic, ovate-lanceolate, or lanceolate, 4–7 × 1–2.5 cm; base cuneate to rounded; apex acute to acuminate, apiculate; abaxial surface pinkish white, papillate, scales 1.5–4 × their own diameter apart, unequal, yellow, glabrous or pubescent, at least along midrib; adaxial surface without scales, sparsely pubescent along midrib when young. Inflorescence terminal, shortly racemose, 3–5-flowered; rachis 2–5 mm, scaly, otherwise glabrous, rarely pubescent. Pedicel 1–1.5 cm, sparsely scaly; calyx rimlike or 5-lobed; lobes ca. 1 mm, rounded or ovate-triangular, scaly, glandular; corolla broadly funnelform-campanulate, 5-lobed to the middle, white to pink, 3–4 cm, outer surface densely glandular scaly, tube sometimes pubescent; lobes rounded-ovate; stamens unequal, 1.3–3.3 cm, longer than corolla; filaments at base spreading-pubescent; ovary 5-locular, densely scaly; style long, glabrous or pubescent at base. Capsule cylindric, 8–15 mm. Fl. Apr–Jul, fr. Jul–Aug.

Yunnan [Myanmar].

Conifer-Rhododendron forests, thickets on slopes; 2800–3400 m.

Rhododendron zaleucum adalah spesies tumbuhan yang tergolong ke dalam famili Ericaceae. Spesies ini juga merupakan bagian dari ordo Ericales. Spesies Rhododendron zaleucum sendiri merupakan bagian dari genus Rhododendron.

Rhododendron zaleucum là một loài thực vật có hoa trong họ Thạch nam. Loài này được Balf. f. & W.W. Sm. miêu tả khoa học đầu tiên năm 1917.

白面杜鹃（学名：Rhododendron zaleucum）为杜鹃花科杜鹃属下的一个种。