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

191. Rhododendron hemitrichotum I. B. Balfour & Forrest, Notes Roy. Bot. Gard. Edinburgh. 12: 115. 1920.

粉背碎米花 fen bei sui mi hua

Small multi-branched shrubs, 0.3–1(–2) m tall; old branches gray, less hairy and scaly; young shoots brown-scaly, densely white-pubescent. Petiole 1–3 mm, densely pubescent or scaly; leaf blade thinly leathery, narrowly oblong, narrowly elliptic or lanceolate, 1.5–3 × 0.5–1.2 cm; base cuneate or obtuse; margin revolute; apex obtuse or shortly acuminate, apiculate; abaxial surface gray-white, scales less than their own diameter apart, glabrous or sparsely hairy along central vein; adaxial surface deep green, densely pubescent. Inflorescence subterminal, 2- or 3-flowered; bud scales persistent. Pedicel slender, 0.2–0.6 cm, densely scaly, very sparsely or densely pubescent; calyx shallowly cup-shaped, without conspicuous lobes, or round-emarginate, small, densely scaly; corolla funnelform, pink or purplish red, 0.9–1.3 cm, outer surface often glandular-scaly; stamens 8, unequal, slightly exserted from corolla; filaments pubescent or glabrous at base; ovary 5-locular, scaly, densely pubescent; style exserted from corolla; base glabrous or pubescent. Capsule cylindric, ca. 6 mm, scaly, pubescent. Fl. May–Jul or Oct–Dec.

Pinus forests, thickets; 2200–4000 m. Sichuan, NW Yunnan.


 

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