Book  (1997)  Page(s) 126.  
 
Albert Edwards Hillier (UK) 1961. R. pimpinellifolia 'Altaica' x R. hugonis... creamy to soft yellow flowers...

Book  (1993)  Page(s) 63.  Includes photo(s).
 
[Listed under "Wild Roses and Their Cultivars"] Description. Hillier, Britain, 1961. A hybrid between the large-flowered form of Rosa pimpinellifolia altaica from the mountains of Siberia and Rosa xanthina forma hugonis, from China.

Book  (1988)  Page(s) 16.  Includes photo(s).
 
Albert Edwards This hybrid between R. xanthina f. hugonis and R. pimpinellifolia var. altaica, makes a very free-flowering shrub up to 3 m high and across, with slightly scented flowers.