Description from Flora of China
Solanum dulcamara Linnaeus var. heterophyllum Makino; S. nipponense Makino.
Vines 50-120 cm tall, glabrescent. Stems sparsely pubescent. Petiole 0.5-2.5 cm; blade of basal leaves deltate, broadly lanceolate or ovate-lanceolate, often with 2 basal lobes, 3-10 × 2-5 cm, glabrous or sparsely pubescent, base rounded or cuneate, margin entire or 3(-5)-lobed, apex acuminate; blade of distal leaves ovate-lanceolate, 2-4 cm. Inflorescences terminal or extra-axillary, open, many-flowered panicles; peduncle 2-3.5 cm, glabrescent. Pedicel 6-10 mm, glabrescent. Calyx 1.5-2 × 2.5 mm; lobes deltate, 0.5 mm. Corolla purple with a green eye, 5-8 mm × 1 cm; lobes lanceolate, ca. 4 mm. Filaments ca. 0.5 mm; anthers oblong, free, 2.5-3.5 mm. Style slender, ca. 5 mm. Berry red, subglobose, ca. 1 cm in diam. Seeds reniform-discoid, ca. 2 mm in diam. Fl. Jun-Sep, fr. Sep-Nov.
This taxon is doubtfully distinct from Solanum dulcamara.
Wastelands, slopes in valleys, near roads, by waters, open forests; 300-2900 m. Anhui, Guangdong, Guangxi, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Qinghai, Shaanxi, Sichuan, Xinjiang (Ürümqi Shi), Yunnan, Zhejiang [Japan, Korea]