List of Rosa species

There is significant disagreement over the number of true rose species. Some species are so similar that they could easily be considered varieties or even forms of a single species. Lists of rose species usually show more than 320. The range of 320 to 350 is accepted by most botanists, but as Liberty H. Bailey has pointed out, the extreme lumpers Bentham and Hooker only allowed for 30 species, while the extreme splitter Michel Gandoger allowed 4,266 species just in Europe and West Asia.

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