Description from Flora of China
Shrubs, 0.5-3 m tall; branches generally slender, angled to subterete, puberulent to glabrescent. Leaves opposite or ternate with arrangement often variable on a branch, subsessile to shortly petiolate; petiole to 5 mm, puberulent to glabrous; blade drying thinly leathery, narrowly lanceolate, narrowly elliptic, elliptic-spatulate, or linear-lanceolate, 3-12 × 0.4-2.3 cm, adaxially glabrous, abaxially puberulent to glabrous, base acute and often decurrent, margin thickened and often thinly revolute, apex acute to obtuse; secondary veins 9-13 pairs, in abaxial axils without domatia; stipules calyptrate, conical, 7-10 mm, splitting along one side for 3/4 or more of length, glabrous. Flowers solitary, pseudoaxillary or terminal; peduncles 5-6 mm, glabrous. Calyx glabrous; ovary portion ellipsoid to cylindrical, 5-6 mm, longitudinally 5-8-ridged; limb with basal tubular portion 4-6 mm; lobes 5-8, linear to narrowly lanceolate, 7-15 mm, keeled, acute. Corolla outside glabrous; tube cylindrical, 35-65 × 3-4 mm; lobes 5-8, oblong-obovate, 25-35 × 10-15 mm, obtuse. Fruiting pedicels to 2 cm. Berry yellow or orange-red, ellipsoid-oblong to ellipsoid, 1.5-2.5 × 1-1.3 cm, with 5-8 weak to developed longitudinal ridges, with persistent calyx lobes to 2 cm; seeds 2-3 mm. Fl. Apr-Aug, fr. May-Jan.
Forests or thickets at streamsides in valleys, fields at riversides; below 100-800 m. Anhui, Guangdong, Guangxi, Hainan, Zhejiang [Vietnam].