Website/Catalog  (1956)  Page(s) [1].  
 
Japanese Tree Peonies
Okina Jishi (Aged Lion) Large pure white with irregular petals...$6.00

Article (magazine)  (Jan 1955)  Page(s) 59.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Japanese, White, 'Okina-jishi' (Aged Lion) (Jap. bef. 1926), [Gardens] Scott Foundation, Whitnal Park Botanical gardens, [Nurseries] Curtis Garden, William Gratwick

Book  (1907)  Page(s) 162.  
 
1843. OKINA JISHI; P.
(1) 1903, Jap. Cat. Fewkes' MSS.