大关杜鹃 da guan du juan

Shrubs, 1–2 m tall; young shoots slender, subverticillate, densely coarsely brown strigose. Leaves all similar. Petiole 3–8 mm, coarsely brown-strigose; leaf blade papery, lanceolate, ovate-lanceolate or elliptic-lanceolate, 2.5–8.5 × ca. 3 cm; both surfaces densely coarsely strigose. Inflorescence 2–4(–7)-flowered. Pedicel ca. 0.8 cm, densely coarsely brown strigose, hairs flat; calyx lobes triangular-ovate, very small; corolla funnelform, red, with darker flecks at base of upper lobes, ca. 2.2 cm; tube narrowly cylindric, outer surface glabrous, inner surface pubescent; lobes oblong, obtuse; stamens 10, unequal, as long as the corolla, filaments puberulent below; ovary conical-ovoid, ca. 5 mm, densely coarsely shiny brown-strigose; style longer than stamens, glabrous. Capsules long-ovoid, ca. 6 mm in diam., densely long-brown-strigose. Fl. Apr–May, fr. Jul–Nov.

Evergreen broad-leaved forests; 1200–1800 m. Sichuan, Yunnan.