崖壁杜鹃 ya bi du juan

Small shrubs, ca. 1 m tall; young shoots densely coarsely red-brown-strigose and with crisped hairs. Petiole 3–5 mm, coarsely strigose and with crisped hairs; leaf blade leathery, elliptic, ovate-elliptic or ovate, 2–3(–5) × 0.7–1.5 cm; base broadly cuneate or round; margin revolute; apex acute and mucronate; both surfaces densely coarsely strigose and silky pubescent when young. Inflorescence 3–5-flowered. Pedicel ca. 0.5 cm, densely coarsely strigose and with crisped hairs; calyx shallowly lobed; lobes triangular, small, densely coarsely silky strigose, hairs crisped; corolla funnelform, white, yellowish when dried, upper lobes with rose flecks, 1.5–1.8 cm; tube cylindric, widening above, 5–8 mm; lobes oblong, ca. 1 cm, the 2 lower lobes slightly spreading; apex acute; stamens 5, exserted, filaments flat, glabrous; ovary ovoid, ca. 3 mm, densely brown silky crisped-hairy; style ca. 2.7 cm, longer than stamens, glabrous or sparsely white-pubescent below. Capsule conical, ca. 5 mm, densely silky crisped-hairy. Fl. Apr–May, fr. Jul.

Thickets on slopes, precipices, rock crevices; near sea level to 400 m. S Zhejiang.