Article (magazine)  (Jan 1955)  Page(s) 56.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Japanese, Crimson, 'Abokiu' (Abo Palace) (Japan before 1896), [Nurseries] Oberlin Peony Gardens

Magazine  (Sep 1944)  Page(s) 12.  
 
Tree Peony Supplement to the Manual
John C. Wister, Germantown, Pa.
Alphabetical Check List of Tree Peony Names, August 1944
Japanese Moutan type; Crimson; ABOKIU (Syn. Abowkyu, Aboukin, Abomiya)(Abo Palace) (Imperial Palace)
(Japan, before 1896) Tokio Nursery Company, Japan, 1896; Yokohama Nurseries, Yokohama, Japan, 1905; Chugai Shokobutsu Yen Nursery, near Kobe, Japan, 1932-39; Oberlin imported in 1890's, in 1942 renamed Crimson Queen; K. Wada, Hokomya Nurseries, Numazu-shi, Japan, 1937.
Name in Large Caps in Black Type indicates accepted names of varieties in American commerce 1944.

Website/Catalog  (1940)  Page(s) 7.  
 
Japanese Tree Peonies 
English translation in parentheses
51. Aboukin (Name of Old Palace). Large; semi-double; clear crimson-red without a blue or magenta shade. Outstanding color. Rare... $15.00

Website/Catalog  (1931)  Page(s) 4.  
 
Tree Peony
Abokiu. Double, deep crimson pink.

Website/Catalog  (1931)  Page(s) 156.  
 
Pivoines en arbre
Variétés japonaises
Nous offrons une série de Pivoines formant partie d'un lot que nous avons reçu du Japon, il y a quelques années.
Abokyn cremson. N'a pas encore fleuri.

Book  (1928)  Page(s) 247.  
 
Tree Peony Check List
Abokiu (Imperial Palace). (Japan, 1896.) Tokio Nursery Co. 1896; Yokohama Nurseries 1905.

Website/Catalog  (1909)  Page(s) 11.  
 
Paeonia Moutan...
16. Abokin, very handsome double, scarlet, 12 inches.

Book  (1907)  Page(s) 13.  
 
4. A BO KIU; P. moutan.
(1) 1903, Jap. Cat. Fewkes' MSS.

Book  (1907)  Page(s) 50.  
 
The Moutan or Tree-Peony...Abokin. Bright scarlet.

Website/Catalog  (1907)  Page(s) 179.  
 
Japanese Tree Peonies.
1 Abokin. Bright scarlet.