''Rubus immanis'' is a rare North American species of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

in the rose family. It has been found only in the state of

North Carolina North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and So ...

in the eastern United States. 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. Some studies have suggested that ''R. immanis'' may have originated as a hybrid between '' R. allegheniensis'' and '' R. canadensis. ''Flora of North America, ''Rubus allegheniensis'' Porter, 1896. Allegheny or common blackberry, sow-teat berry, ronce des Alléghanys
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References

immanis Plants described in 1906 Flora of the Eastern United States {{rubus-stub