Article (magazine)  (Dec 2015)  Page(s) 19.  
 
“Kerisalo” Found from Kerisalo, Joroinen, Eastern Finland. It gradually spreads into a shrub upto 2 metres with largish grey-green leaflets, possibly indicating cinnamomea influence. “Kerisalo” flowers later than other spinosissimas, beginning from early July. The beautiful flowers are large, loosely semi-double, lightly fragrant, of a delicate shade of salmon-pink.

Article (website)  (2005)  Page(s) 7.  Includes photo(s).
 
Kerisalo (R. pimpinellifolia) R. majalis x pimpinellifolia ?