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

320. Rhododendron denudatum H. Léveillé, Repert. Spec. Nov. Regni Veg. 13: 339. 1914.

皱叶杜鹃 zhou ye du juan

Rhododendron xanthoneuron H. Léveillé.

Shrubs or small trees, 3–6 m tall; branchlets stout, ca. 5 mm in diam., whitish or yellowish stellate tomentose when young, glabrescent. Petiole cylindric, 10–20 mm; leaf blade leathery, elliptic-lanceolate to ovate-lanceolate, 10–16 × 2.5–5 cm; base cuneate; apex apiculate or acuminate; abaxial surface loosely yellowish tomentose; adaxial surface rugose, glabrous, midrib prominent abaxially, impressed adaxially; lateral veins 16–18-paired, prominent abaxially, impressed adaxially. Inflorescence 8–12-flowered; rachis ca. 5 mm, tomentose. Pedicel stout, 1–2 cm, densely yellowish tomentose; calyx lobes 5, ca. 1 mm, triangular; corolla campanulate, rose, with deep crimson flecks within, 3.5–4 cm, lobes 5, suborbicular, 1.5–2 cm; stamens 10–13, 2–3 cm, filaments glabrescent; ovary cylindric, 5–7 mm, yellowish tomentose; style 3–3.5 cm, glabrous. Capsule 15–20 × 6–8 mm, yellowish brown tomentose. Fl. Apr–May, fr. Aug–Sep.

Thickets, mountain slopes; 2000–3300 m. NW Guizhou, SW Sichuan, E Yunnan.


 

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