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Rhododendron hongkongense

Description from Flora of China

Azalea myrtifolia Champion, Bot. Mag. 77: t. 4609. 1851, not Rhododendron myrtifolium Loddiges (1824), nor Schott & Kotschy (1851).

Shrubs, 1–2(–7) m tall; young shoots dense, fine and firm, glandular hairy, glabrescent. Petiole 4–7(–10) mm, puberulent above; leaf blade leathery, elliptic, elliptic-ovate or obovate-lanceolate, 2.5–6.5 × 1.5–2.3 cm; base ± cuneate; margin slightly revolute; apex acute and mucronate; abaxial surface obscurely glaucous; adaxial surface dark green when dried, sparsely puberulent on midrib only; midrib prominent on both surfaces; lateral veins conspicuous on abaxial surface. Inflorescences subapical, usually in clusters of 2–4, 1-flowered. Pedicel 1–1.5 cm, densely glandular-hairy and pubescent; calyx lobes papery, oblong-ovate, margin with short glandular hairs, apex fimbriate; corolla rotate, white or pale pink, with darker flecks on upper lobes, 2–3 cm, tube ca. 6 mm, ca. 5 mm wide at base; lobes obovate, 1.8–2.4 cm; stamens 5, shorter than corolla, filaments flat, with spreading white pubescence below middle; ovary ovoid, shortly glandular-hairy; style longer than stamens, exserted, glabrous. Capsule subovoid to broadly ovoid, 4–8 mm, shortly glandular-hairy or tuberculate only. Fl. Mar–Apr, fr. Jul–Dec.

Sparse forests; 600–1600 m. Guangdong.


 

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