Book  (2008)  Page(s) 747.  
 
In Germany, a much used cultivar has been Die Pillnitzer Vitaminrose 'PiRo 3', a hybrid between R. dumalis and R. pendulina. This cultivar has a very high vitamin C content, 1200 mg/ 100 g fruit flesh, and has been grown mainly in Germany together with genotypes of R. villosa subsp. pomifera cv. 'Karpatia' from Slovakia (Albrecht, 1993).

Book  (2001)  Page(s) 444.  
 
Rosa villosa L. ...In Slovakia the cultivar 'Karpatia' is grown, in Central Germany only cultivation trials. Cultivated as hedges for wind protection, locally also as an ornamental shrub.