93. Rhododendron websterianum Rehder & E. H. Wilson in Sargent, Pl. Wilson. 1: 511. 1913.
毛蕊杜鹃 mao rui du juan
Small, much-branched erect shrubs, (0.2–)0.8–1(–1.5) m tall. Petiole 1–5 mm, scaly; leaf blade ovate, oblong, narrowly elliptic to linear-lanceolate, (0.5–)0.7–1.5(–2) × (0.2–)0.3–0.5 (–0.9) cm; base cuneate; apex obtuse, rarely mucronate; abaxial surface scales contiguous to overlapping, uniformly fawn or golden-brown; adaxial surface pale green, matt, scales overlapping. Inflorescence 1(or 2)-flowered. Pedicel 1–3 cm, scaly; calyx lavender or yellowish red; lobes (2.8–)3–4(–5) mm, rounded to oblong, persistent in fruit, usually scaly, margin ciliate; corolla broadly funnelform, pale purple to blue-purple or yellow, (1–)1.3–1.7(–1.9) cm, tube 5–7 mm, outer surface not scaly, sometimes pubescent; throat pubescent; stamens 10, nearly as long as corolla, filaments pubescent towards base; ovary ca. 2 mm, densely scaly; style longer than stamens, with some scales near base, slightly pubescent. Capsule ovoid to cylindric, 4–5(–7) mm, densely scaly. Fl. May–Jul, fr. Sep–Oct.
Pinus forests, scrub, moorlands, alpine meadows and grasslands; 3200–4900 m. NW Sichuan.