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

80. Rhododendron yungningense I. B. Balfour ex Hutchinson in J. B. Stevenson, Sp. Rhodod. 436. 1930.

永宁杜鹃 yong ning du juan

Rhododendron glomerulatum Hutchinson.

Erect shrubs, 1(–1.3) m tall; branchlets compact; bud scales deciduous. Petiole 1–3 mm, scaly; leaf blade elliptic, broadly elliptic, oblong or oblong-lanceolate, (0.6–)0.8–2 × (0.2–)0.4–0.8 cm; base cuneate; apex acute or obtuse, mucronate; abaxial surface fawn to ferruginous, sometimes with slightly darker spotting, scales almost contiguous; adaxial surface green, matt, scales dense. Inflorescence 3–4(–6)-flowered. Pedicel 0.2–0.3 cm, scaly; calyx pink or purple, lobes (0.5–)2–3 mm, ovate to rounded, irregular, persistent in fruit, usually scaly, glabrous, margin scaly, sometimes ciliate; corolla broadly funnelform, deep purplish blue, rose-lavender, rarely white, 1.1–1.5(–1.7) cm, tube 5–6 mm, outer surface usually glabrous, throat pubescent; stamens (8–)10(–12), 0.9–1.4 cm, filaments pubescent towards base; ovary 1.5–2.5 mm, scaly; style 0.35–0.6 cm or 1–1.5 cm, glabrous. Capsule ovoid, ca. 5 mm, densely scaly. Fl. May–Jun, fr. Jul–Sep.

Rhododendron scrub, open alpine slopes, rocks; 3200–4300 m. SW Sichuan, N Yunnan.


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