Physalis virginiana (Ground Cherry)
Family: Solanaceae (Nightshade)
     
Physalis virginiana has smooth leaves, while most other Physalis spp. have hairy leaves. Flowers emerge from leaf axils and hang from 1.0 - 1.5 cm long pedicels. Fruits are enclosed in a papery calyx. Most Physalis spp. are considered poisonous, yet the vegetable tomatillo is also in this genus.

Vegetation zone:  Plains, Foothills
Time of bloom:  June - August
Origin:  Native
Eastern Colorado Wildflowers