Shrubs. Roots thick. Twigs slightly angled, ca. 1.5 mm in diam., glabrous. Leaves scattered; petiole ca. 4 mm; leaf blade linear, 12–17 × 0.6–1.1 cm, papery, glabrous, secondary veins inconspicuous on both surfaces, base attenuate, margin slightly revolute, shallow and remotely undulate-denticulate towards apex, without basal glands, apex caudate. Inflorescences corymbose-racemose, 5- or 6-flowered; peduncle 6–7 cm, nutant, pubescent. Pedicel ca. 1.2 cm, glabrous, not expanded. Calyx tube ca. 3 mm; limb divided ca. 1/2; lobes triangular, 3–4 mm. Corolla crimson or carmine, tubular, ca. 2.2 cm; lobes green-tipped, ca. 3 mm, apex acute. ?Anthers with thecae ca. 6 mm, papillate; tubules without spurs. Fl. Jan–Feb.

High forests, epiphytic on trees; 1000–1700 m. SE Xizang [NE India (Assam)].