Book  (Jan 2000)  Page(s) 226.  
 
Choraku Tree Peony. (ex Japan) [no date given]... pink

Website/Catalog  (1956)  Page(s) [1].  
 
Japanese Tree Peonies
Choraku (Forever Happy) Large shell pink double...$5.00

Book  (1907)  Page(s) 54.  
 
512. CHO RAKU; P. moutan.
(1) 1903, Jap. Fewkes' MSS.