Cutleaf Blackberry is a European introduction naturalized across much of the Pacific Coast and parts of the eastern United States, immediately recognizable by its deeply dissected, fernlike leaflets that set it apart from other brambles. It is a vigorous, invasive scrambler that forms dense impenetrable thickets on roadsides, disturbed ground, and forest margins. Despite its invasive status, it produces abundant, large, sweet-tart berries that are eagerly consumed by wildlife and human foragers alike. It is especially abundant in the Pacific Northwest, where it often grows alongside the even more aggressive Himalayan Blackberry.
Best time to see a Cutleaf Blackberry
The best time to see a Cutleaf Blackberry is April–August, when about 63% of U.S. sightings happen, based on 6,010 research-grade iNaturalist observations.
Not certain it is a Cutleaf Blackberry? What plant is this? walks through what to check first and the lookalikes that catch people out.
Recent Cutleaf Blackberry sightings near you
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