Book  (1928)  Page(s) 248.  
 
Tree Peony Check List
† Antigonus. (——, 1889.) Kelway, & Son 1889.

† Never widely distributed.

Website/Catalog  (1890)  Page(s) 32.  
 
Pæonia Arborea (Tree or Moutan Pæonies).
General Collection.
Antigonus, French-white, lilac centre.