?Rhododendron seniavinii var. crassifolium P. C. Tam.

Shrubs, up to 2 m tall; young shoots densely coarsely gray-brown-strigose. Summer and winter leaves different; petiole 6–13 mm, densely strigose; leaf blade leathery, ovate to ovate-oblong or oblong-elliptic, 1.5–6(–8) × 1–2.5(–4) cm; base broadly cuneate; margin slightly revolute; apex acuminate and mucronate; abaxial surface densely coarsely yellow-brown-strigose; adaxial surface glabrescent. Inflorescence 4–10-flowered. Pedicel ca. 0.5 cm; calyx triangular-ovate, small, densely silky red-brown-strigose; corolla funnelform, sometimes narrowly so, white, with purple flecks on lobes, ca. 2.2 × 1.5 cm; tube cylindric, ca. 12 mm, outer surface sparsely pubescent; lobes spreading, long-ovate, ca. 1 cm; stamens 5, unequal, 1.2–1.5 cm, exserted, filaments flat, broadening at base, glabrous; ovary ovoid, densely coarsely silky red-brown-strigose; style 1–1.2 cm, densely yellowish villous at base. Capsule long-ovoid, ca. 7 × 4 mm, densely coarsely brown-strigose. Fl. Apr–May, fr. Aug–Nov.

The type specimen of R. seniavinii var. crassifolium is too poor to place with certainty.

Hills; ca. 1400 m. Fujian, Hunan, Jiangxi.