Solanum physalifolium
is a white-flowered Nightshade that grows as a weed in disturbed areas on the
plains and foothills. Leaves are pubescent and shallowly lobed. In fruit, the
calyx covers the base of the berry. The flowers of Solanum spp. arise
from the stem in the middle of the internode, which is an unusual characteristic.
All Solanum spp. in eastern Colorado are introduced species.
Compare to Solanum americanum, which
has glabrous (hairless) leaves and stems and a reflexed calyx that does not cover
the fruit.
Compare to Solanum triflorum, which
is also white-flowered but has deeply lobed leaves.