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FOC | Family List | FOC Vol. 14 | Ericaceae | Rhododendron

362. Rhododendron detersile Franchet, J. Bot. (Morot). 12: 260. 1898.

干净杜鹃 gan jing du juan

Small shrubs, 0.4–1 m tall; young shoots densely rufous-tomentose; bud scales persistent. Petiole short, 3–4 mm, densely rufous-tomentose; leaf blade thickly leathery, oblong to oblanceolate, 3–6 × 1–2 cm; base broadly cuneate; margin revolute; apex blunt, rounded, mucronate; abaxial surface indumentum 1-layered, red-brown woolly, detersile when mature, hairs branched; adaxial surface appearing bullate, deep green, slightly shiny, glabrous; midrib, lateral and net veins impressed adaxially. Inflorescence compact, umbellate, 4–8-flowered; rachis very short. Pedicel 1–1.5 cm, densely red-brown glandular-hairy and pubescent; calyx membranous, lobes 5, 4–5 mm, ovate-lanceolate, acute, hairy and shortly glandular-hairy outside, margin ciliate-glandular; corolla campanulate, pink, with crimson spots on upper lobes inside, 2.5–3 cm, lobes 5, pubescent at base; stamens 10, unequal, filaments pubescent at base; ovary conical, ca. 5 mm, densely red-brown villous and glandular-hairy; style ca. 2 cm, shortly glandular-hairy at base; stigma discoid. Capsule cylindric, ca. 12 × 5 mm, villous, and with vestiges of glandular hairs. Fl. May–Jun, fr. Aug–Oct.

Forests, mountain slopes; 2500–2900 m. SW Shaanxi (Taibai Shan), NE Sichuan.


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