Physalis viscosa is a species of flowering plant in the nightshade family known by many common names, including starhair groundcherry, stellate ground-cherry and grape groundcherry in English, and arrebenta-cavalo, balãozinho, and camambú in Portuguese. It is native to South America, and it is known on other continents as an introduced species and sometimes a weed. It can grow in many types of habitat, including disturbed areas.