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Rubus setosus var. groutianus (Blanch.) L.H.Bailey
Rubus setosus var. rotundior L.H.Bailey
Rubus significans L.H.Bailey
Rubus singulus L.H.Bailey
Rubus spectatus L.H.Bailey
Rubus stipulatus L.H.Bailey
Rubus superioris L.H.Bailey
Rubus tectus L.H.Bailey
Rubus udus L.H.Bailey
Rubus unanimus L.H.Bailey
Rubus uniformis L.H.Bailey
Rubus univocus L.H.Bailey
Rubus vermontanus Blanch.
Rubus vermontanus var. ortivus (L.H.Bailey) B.Boivin
Rubus vermontanus var. viridifolius Blanch.
Rubus viridifrons L.H.Bailey
Rubus wheeleri (L.H.Bailey) L.H.Bailey
Rubus setosus, the bristly blackberry, is a North American species of flowering plant in the rose family. It is widespread in much of central and eastern Canada (from Ontario to Newfoundland) and the northeastern and north-central United States (from New England west to Minnesota and south as far as North Carolina)
Rubus setosus is a prickly shrub up to 150 cm (4.9 ft) tall. Leaves are palmately compound with 3 or 5 leaflets. Flowers are white. Fruit is black, nearly spherical.
The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy.
