Roundleaf Greenbrier is a thorny, climbing native vine of eastern forest edges and thickets, with green stems, round glossy leaves, and clusters of dark blue-black berries. Despite its formidable thorns, the berries are an important food for mockingbirds, catbirds, and many other birds. The thorny thickets provide exceptional nesting and escape cover for wildlife.
Best time to see a Roundleaf Greenbrier
The best time to see a Roundleaf Greenbrier is April–August, when about 62% of U.S. sightings happen, based on 21,858 research-grade iNaturalist observations.
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Recent Roundleaf Greenbrier sightings near you
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