Herbs perennial, 1-2 m tall, glabrous. Petiole 0.5-2.5 cm; leaf blade ovate or ovate-lanceolate, 3-7 × 2-4 cm, sometimes with scattered pubescence adaxially, glabrous abaxially, sometimes ciliate, base obtuse or acuminate, sometimes oblique, margin entire, sinuate, or with a few teeth, apex acuminate. Flowers in clusters of 2 or 3; pedicel 2-2.5 cm. Calyx ca. 4 × 3 mm; teeth short deltate, apex obtuse, ciliate. Corolla white, with green spots at throat, ca. 1 × 1 cm, divided to halfway; lobes narrowly ovate, densely pubescent adaxially, ciliate. Stamens ca. 8 mm. Ovary ca. 2 mm. Fruiting calyx oblate, 1.5 × 1.8-2 cm, faintly 10-angular, 10-ribbed, contracted and open at apex. Berry yellow-green. Seeds pale yellow. Fl. Jun-Aug, fr. Sep-Oct.
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