(1991)  
 
King George IV (Rivers' George IV, George IV) by Rivers, ca. 1817. Parentage held to be a hybrid between a Damascene Rose and a Chinese Rose. Hybrid of chinensis. Vigorous, branching, not perpetual, double corollas, cup-shaped...

(1991)  Page(s) 302.  
 
Rosa yakushimaensis Himuro