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Published 2014
Modern cultivated raspberries in Europe are mainly varieties of R. idaeus, often crossed with other species to improve yield and disease resistance. In N. America, cultivated raspberries include R. idaeus, R. strigosus (for red raspberries), R. occidentalis (for black raspberries), and hybrids between these and others.
Raspberries and blackberries are to some extent interfertile, and hybrids exist. The best known of these is the
