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Bristly Locust (Robinia hispida L.)

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Bristly Locust
Photo © Bonnie Isaac, Public Domain.


A nitrogen-fixing shrub to small tree native to the southeastern US but having greatly expanded its range north and westward.

Range - Expand

Introduced or Not Present
Native or Expanded
Expanded or Not Present

This map is based on our research. We have checked its accuracy to Level 3 ecoregions. Although this plant occurs somewhere in each of these regions, it may only occur in a small part of some or all of them.

This species is widely planted in landscaping, and frequently escapes. Such escapes have led to it establishing broadly in new areas. We mark this new range as expanded in most of the east where it is contiguous with the native range, and as introduced in the west where populations are separated from the native range by large distances. It is subjective, however, exactly where to make this cutoff. We chose the high plains and southwestern tablelands because they have the first large gap in the range.

Photo gallery

Photo © Bonnie Isaac, Public Domain.
Photo © Bonnie Isaac, Public Domain.
Photo © Tom Scavo, CC BY 4.0.
Photo © Evan M. Raskin, CC BY 4.0.
Photo © Annie Weissman, CC BY 4.0.
Photo © Ryan Sorrells, CC BY 4.0.