Description from Flora of China
Shrubs. Stems terete; branches densely yellow glandular. Leaves sessile; leaf blade fiddle-shaped-elliptic, 13-24 × 4.5-8 cm, papery, abaxially densely glandular, adaxially glandular when young but glabrescent, secondary veins 1 on each side of midvein, base auriculate, margin entire and ciliate, apex acuminate. Inflorescences axillary, cymose, 5-9-flowered, ca. 1 cm, densely glandular; bracts small, caducous. Pedicel ca. 2 mm, densely glandular. Hypanthium long funnelform, ca. 3.5 mm, 4-sided, glandular. Calyx lobes 4, ca. 0.5 mm, margin repand, apex apiculate. Petals 4, white, ovate, ca. 2.2 mm, apex abruptly acuminate. Stamens 4; filaments ca. 2 mm; anthers ca. 3.5 mm, slightly curved; connective slightly inflated at base. Ovary inferior, urceolate, 4-celled, glandular. Capsule elliptic; hypanthium ca. 3.5 mm, obtusely 4-sided, densely glandular, 4-dentate at limb. Fl. Jun, fr. Jul.
● Mixed forests, bamboo forests. 200-300 m. Yunnan.