 Mondeuse noire is very similar to Muscardin which is found in Southern Rhône where it is one of the thirteen grape varieties permitted in the wine Châteauneuf-du-Pape.One difference is that Muscardin has less sensitivity to downy mildew.Ampelographers also thought that Mondeuse noire was a color mutation of Mondeuse blanche but DNA evidence has shown that not to be the case with the two varieties having a parent-offspring relationship though it is not yet clear which variety is the parent and which is the offspring.