Description from Flora of China
Rhododendron huiyangense W. P. Fang & M. Y. He.
Shrubs, 1.5–2 m tall; young shoots slender, subverticillate, strigose. Leaves weakly dimorphic. Petiole 2–4 mm. Leaf blade thickly leathery, elliptic or obovate-elliptic, 1–2.5 × 0.5–1.3 cm; base broadly cuneate or rounded; margin revolute; apex shortly acuminate; both surfaces coarsely strigose. Inflorescence usually 6–10-flowered. Pedicel 0.3–0.4 cm, densely coarsely dark brown strigose; calyx lobes inconspicuous, strigose; corolla narrowly funnelform, purplish, 1–1.6 cm; tube ca. 8 mm; lobes oblong, ca. 0.8 cm; stamens 5, ca. 1.7 cm, exserted, filaments white, pubescent; ovary ovoid, ca. 3 mm, silky tomentose and coarsely strigose; style ca. 1 cm, shorter than stamens, glabrous. Capsules ovoid, ca. 5 mm, densely coarsely strigose. Fl. Mar, fr. Jul–Aug.
Mountain ridges; 800–900 m. Guangdong.