View photos of the edible plant, Physalis longifolia (Longleaf groundcherry), profiled in the Wild Edible Series: Arkansas, Colorado, Kansas, New Mexico: Vol 1, Oklahoma, Sonoran, Texas: Vol 1, and Utah.

A passage from  Sonoran Desert Food Plants:

There are no cautions for the fruit. Ground cherry’s foliage is medicinal (or toxic in larger amounts). Some may confuse Horse nettle (Solanum elaeagnifolium) in appearance with Ground cherry. Unlike Ground cherry, Horse nettle’s fruit have no encasing and are yellow. Horse nettle fruit are not edible.

A passage from Wild Edible Plants of Texas (Volume 1):

Usually ripening from late summer to fall, each fruit is encased in an inflated sac. Depending on species, the fruit
are greenish–tan to yellowish–orange (occasionally darker) when ripe.