Rosa species in Northwestern Europe- a resource

The Rosa section of the “Interactive Flora of NW Europe” has roses, their descriptions, and some chromasome information.

Search turned up anything with rosa in the name, but the R. spp. are together, not that far down this page.

Link: ip30.eti.uva.nl/bis/flora.php?selected=beschrijving&menuentry=zoeken&zoeknaam=rosa