1. Physalis alkekengi Linnaeus, Sp. Pl. 1: 183. 1753.
酸浆 suan jiang
Herbs perennial. Stems 40-80 cm tall, slightly woody at base, little branched, nodes sometimes inflated, mostly pubescent. Petiole 1-3 cm; leaf blade narrowly to broadly ovate, 5-15 × 2-8 cm, glabrescent or pubescent, base oblique, cuneate, margin entire or coarsely dentate, sometimes with salient, unequal deltate lobes, apex acuminate. Pedicel 0.6-1.6 cm, glabrescent, puberulent or densely and persistently villous. Calyx broadly campanulate, ca. 6 mm, densely pubescent. Corolla white, mostly with a greenish or yellowish eye, rotate or campanulate, 1.5-2 cm in diam., lobed. Stamens yellow. Fruiting pedicel 2-3 cm; fruiting calyx orange or red, ovate, rounded, 10-ribbed, 2.5-4 × 2-3.5 cm, subleathery, invaginated at base, glabrescent or persistent villous. Berry shiny, orange-red, globose, 1-1.5 cm in diam. Seeds pale yellow, reniform, ca. 2 mm in diam.
Asia, Europe; cultivated and naturalized elsewhere
The fruit of this species is edible and is used medicinally as a febrifuge.