褐毛杜鹃 he mao du juan

Shrubs, 1–3 m tall; shoots pubescent and with few short stalked glands when young, later glabrescent. Petiole 5–10 mm, ± pubescent; leaf blade thickly leathery, ovate-lanceolate to ovate or ovate-elliptic, 4–8 × 2–4 cm; base broadly cuneate or subrounded; apex acute and cuspidate; abaxial surface indumentum dense, thickly felted, red-brown to rust-brown or dark brown to golden-brown, sometimes subagglutinated, hairs long-rayed, sometimes intermixed with a few glands; adaxial surface shiny, green, glabrescent. Inflorescence corymbose-racemose, 6–8-flowered; rachis 7–10 mm, sparsely pubescent. Pedicel 1.5–2.5 cm, floccose; calyx lobes 5, ca. 3 mm, broadly triangular, floccose outside; corolla broadly campanulate or funnel-campanulate, yellow or white to pink, rose-tinged on upper lobes and with copious crimson spots, 2.5–4 cm, lobes 5; stamens 10, unequal, filaments densely pubescent in lower half; ovary 4–5 mm, densely brownish or whitish villous; style glabrous or villous at base, stigma capitate, yellow-green. Capsule cylindric, ca. 15 × 4 mm, hairy. Fl. May–Jun, fr. Jul–Sep.

Forests, Rhododendron thickets, mountains; 2300–4000 m. W Sichuan.

Lower Taxa

• Rhododendron wasonii var. wasonii
• Rhododendron wasonii var. wenchuanense L. C. Hu