Book  (Jan 2000)  Page(s) 230.  
 
Kokuryu Nishiki. See 'Kokuryu-nishiki'.
Kokuryu-nishiki Tree Peony. ex Japan pre-1905... purple

Book  (Jan 1999)  Page(s) 210.  
 
Black Dragon Brocade see Kokuryu-Nishiki
Brocade of the Sun and Moon see Kokuryu-Nishiki

Article (magazine)  (Jan 1955)  Page(s) 58.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Japanese, Purple. 'Kokuryu-nishiki' or 'Koki-riu-nishiki' (Black Dragon Brocade) (Jap. bef. 1905), [Gardens] Scott Foundation