Rhododendron oblancifolium M. Y. Fang

Shrubs, 2.5–5 m tall; those more then one year old glabrous; branchlets slender, those of the current year brownish green and puberulent. Petiole short, 5–10 mm, usually glabrous; leaf blade thinly leathery, oblanceolate, 6–10 × 1.5–2 cm; base cuneate; apex acuminate or acute, shortly caudate; abaxial surface indumentum brownish; adaxial surface green, glabrous; midrib prominent abaxially, impressed adaxially; lateral veins inconspicuous on both surfaces. Inflorescence racemose-umbellate, 3–5-flowered; rachis 2–4 mm, brownish pilose. Pedicel 1–2 cm, tomentose and glandular-hairy; calyx teeth less than 1 mm, rounded; corolla funnel-campanulate, white to pink, with purple spots within at upper part of the tube, 3–3.5 cm, lobes 5, rounded; stamens 7–13, unequal, 1.5–3 cm, puberulent at the base; ovary ovoid, ca. 4 mm, 6- or 7-loculed, glandular-puberulent; style 2.5–3 cm, glabrous. Capsule cylindric, 8–15 × 4–5 mm, often rufous-pubescent. Fl. Apr, fr. Jul.

NE Guizhou (Fanjing Shan).

Forests, open thickets, valleys; 500–1300 m.

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

Rhododendron oblancifolium là một loài thực vật có hoa trong họ Thạch nam. Loài này được M.Y. Fang miêu tả khoa học đầu tiên năm 1985.

倒矛杜鹃（学名：Rhododendron oblancifolium）为杜鹃花科杜鹃属下的一个种。