Wintercreeper is an evergreen vine forming a dense, trailing groundcover. It can also sometimes be shrubby and can climb 20 feet or higher with aerial rootlets that cling to tree trunks and other structures.
The branches are densely covered with minute warts.
Leaves are leathery, opposite, elliptical, veiny beneath, usually toothed. Numerous cultivars exist with a variety of leaf sizes and colors, including variegated forms with yellowish striping or other patterns.
Flowers are small, greenish, and occur in clusters, with a long flower stalk.
Fruits are rounded and smooth in an orange capsule, maturing in June and July.