Website/Catalog  (2006)  Page(s) 186.  
 
"Salmon buds open to light apricot toning to buttercup yellow. Huge globes of flower cover the plant and always delight visitors to our garden. To my mind, this is one of the finest roses of its type, performing so well in landscapes as to eclipse most hybrid teas."

Book  (1991)  Page(s) 68.  
 
Buttercup Hybrid Tea, buttercup-yellow, 1930, Dobbie. Description.

Book  (1936)  Page(s) 117.  
 
Buttercup (HT) Dobbie 1930; deep buttercup-yellow, semi-double, fragrance 5/10 (orange), floriferous, growth 7/10.

Book  (1932)  Page(s) 34.  
 
Harry H. Hazlewood.  The New Roses of 1932. 
Buttercup Looks like a die back; branches very pithy. 

Website/Catalog  (1932)  Page(s) 37.  
 
New Roses 1932.  Buttercup (HT.  Dobbie & Co, 1930)  Colour deep buttercup yellow flowers full and well formed with a pleasing orange fragrance. Pure Hybrid Tea that does not die back 4/ each.
Semi-double flowers of good colour. Present appearances indicate it will die back in this climate.
 

Book  (1931)  Page(s) 223.  
 
List of Roses first tried in 1930, eligible for Awards 1931.
Trial Ground No. 338.  Sender Dobbie & Co. Buttercup H.T. Colour Bright orange yellow. Fragrant. Habit of growth vigorous.