Book  (Jan 2000)  Page(s) 159.  
 
Adonis Herbaceous Peony. Sass 1930. A double pink lactiflora

Magazine  (Sep 1930)  Page(s) 29.  
 
Department of Registration
The following peonies are submitted for registration by H. P. Sass of Washington, Nebraska:
Adonis. Double type; large; late. Pink with yellow collar. Tall, strong stems. Formerly No. B2.