Shrubs 1-2 m tall, erect to climbing; branches, petioles, and inflorescences brownish and dark gray velvety. Petiole 0.6-2 cm; leaf blade ovate-lanceolate to ovate, 3-7.5 X 1-4.5 cm, papery, both surfaces subglabrous, abaxially brownish red glandular, base cuneate to subrounded, margin entire, apex acuminate; veins 3-5 pairs, abaxially prominent. Panicles 5-12 X 2.5-4 cm; bracts linear to linear-lanceolate, 2-6 mm, velvety. Calyx ca. 1.5 mm, slightly 5-dentate, outside brown glandular and pubescent when young but glabrescent, inside glabrous. Corolla yellow, tube ca. 7 mm; lower lip 3-lobed, middle lobe 1.5-2 mm, longer than lateral lobes; upper lip emarginate, white villous in throat. Anthers brown. Ovary glabrous, apically brown glandular. Fruit dark red, obovate, ca. 4 mm in diam., brown glandular. Fl. and fr. May-Oct.

Medicinal.

* Mixed thickets on mountain slopes; 300-700 m. Guangdong (Ruyuan Xian)