Book  (1988)  Page(s) 129.  
 
location 203/5, Yuhla (Prof. Hansen 1927), hybrid arkansana, light purple-red, large, semi-double, mild fragrance, tall

Book  (1936)  Page(s) 765.  
 
Yuhla (hybrid arkansana) Prof. Hansen 1927; Dakota wild rose X Jacqueminot; crimson, large, semi-double, flat, in clusters of 3-7, once-blooming, rugosa-foliage, growth 7/10, upright, 1.50 m. Sangerhausen

Book  (1927)  Page(s) 227-228.  
 
Contains a lengthy listing of Prof. Hansen's roses, including Yuhla, noting description and parentage of each.

Book  (1927)  Page(s) 53.  
 
Yuhla Rose - Introduced 1927. Pedigree: Wild rose from Lake Oakwood. South Dakota x General Jacqueminot. Flowers semi-double, crimson, blooming through July and August; leaves of rugosa type. About 20 petals and 26 petaloids.