刺枝杜鹃 ci zhi du juan

Upright small shrubs, 2–3 m tall; young shoots dendroid stellate-setose and glandular-hairy. Petiole 15–20 mm, brownish setulose-tomentose; leaf blade leathery, obovate to elliptic, 6.3–10 × 2–4 cm; base rounded; margin revolute; apex rounded, apiculate; abaxial surface indumentum 1-layered, fulvous tomentose, hairs dendroid; adaxial surface rugulose, glabrous; midrib grooved adaxially; lateral veins ca. 13-paired, impressed adaxially. Inflorescence 6–10-flowered; rachis ca. 6 mm, glabrous. Pedicel ca. 1.7 cm, densely setulose-tomentose; calyx cupular; lobes 5, 7–9 mm, puberulent outside; corolla tubular-campanulate, carmine to blood-red, ca. 3.9 cm, with 5 dark nectar pouches at base; lobes 5, suborbicular ca. 1.3 × 1.8 cm; stamens 10, unequal, 1.6–2.5 cm, filaments red at base, glabrous; ovary ovoid, ca. 5.5 × 4 mm, densely stellate-tomentose; style ca. 2.4 cm, tomentose at base; stigma capitate. Capsule not known.

Forests, forest margins, thickets, gullies, alpine slopes; 3000–3700 m. SE Xizang [NE India, NE Myanmar].