Rubus adenocaulis is a rare North American species of flowering plant in the rose family. It has been found only in the Province of Nova Scotia in the eastern Canada.Biota of North America Program 2014 county distribution mapFernald, Merritt Lyndon. 1940. Rhodora 42(500): 288-290 description in Latin, commentary in EnglishFernald, Merritt Lyndon. 1940. Rhodora 42(500): plates 612 + 613 photos of Rubus aculifer
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.Flora of North America, Rubus Linnaeus, 1754. Bramble Some studies have suggested that R. adenocaulis may have originated as a hybrid between R. allegheniensis and R. setosus.Flora of North America, Rubus allegheniensis Porter, 1896. Allegheny or common blackberry, sow-teat berry, ronce des Alléghanys
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