Plants 30-60 cm tall. Roots numerous, clustered, fleshy and fibrous often together. Stems erect. Petiole 2-4 cm; leaf blade elliptic, ovate, or lanceolate, 7-19 × 3-9 cm, sparsely pubescent, base oblique, apex short acuminate or acute. Pedicel 1-2.2 cm, glabrescent. Calyx short campanulate, 1/3 as long as corolla, 5-11 × 6-10 mm, divided to halfway or slightly 5-parted; lobes erect, narrowly deltate or lanceolate, acuminate at apex, ± less unequal, pubescent and villous abaxially, ciliate. Corolla white, pale yellow, or yellowish green, broadly campanulate, 1.2-2 × 1.5-2.8 cm; lobes short deltate, pubescent abaxially, ciliate. Nectary absent. Stamens half as long as corolla; filaments 4-5 mm, sparsely pubescent; anthers 2-3 mm. Fruiting pedicel 2-3.5 cm, thickened upwards. Fruiting calyx subglobose, closely enveloping and longer than berry, 2-2.5 × 3-5 cm, base rounded, apex abruptly contracted, open. Berry 1.5-2 cm. Fl. May-Aug, fr. Jul-Sep.
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