酸浆属（Physalis），是茄科（Solanaceae）下的植物，分布在在世界各地温带和亚热带地区。此属的特点是果实大小与小橙子相似的，形状和结构类似小番茄,但它部分或完全地被封闭在一个大的由花萼形成的纸质外皮内。

它是草本植物，成体高度为0.4-3米，类似于普通番茄，但通常有更硬更直的茎；一年生或多年生。耐高温，需要充足阳光、温暖的气候，有些种对霜冻敏感，但其他种如酸浆（P. alkekengi），会在冬天休眠以忍受严寒。

Physalis (/ˈfaɪsəlɪs/, sometimes /faɪˈseɪlɪs/, from physalis = bladder) is a genus of flowering plants in the nightshade family (Solanaceae), which grow in warm temperate and subtropical regions of the world. Most of the species, of which there may be 75-90, are indigenous to the New World. Cultivated species and weedy annuals have been introduced worldwide. A notable feature is the formation of a large papery husk derived from the calyx, which partly or fully encloses the fruit. The fruit is small and orange, similar in size, shape and structure to a small tomato.