There is significant disagreement over the number of true rose species.
Lists of rose species usually show more than 320.
[1] The numbers 320 to 350 are the figures accepted by most botanists, but as 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.
[2] There are currently four subgenera in Rosa, although there have been some disputes over the years.
[3] The four subgenera are: The following species are accepted:[1]