Book  (Jan 2000)  Page(s) 234.  
 
Amber Moon Hybrid Tree Peony. Saunders 1948. A single yellow hybrid

Magazine  (Sep 1977)  Page(s) 19.  
 
"Botanical Descriptions of 40 Saunders Lutea Hybrids" by Dr. David Reath and Silvia Saunders
...These descriptions aim to provide the nurseryman and the average gardener with a means of determining the differences between the hybrids, many of which are very similar indeed...
Amber Moon—Single; 8-10 petals, slightly tawny (hence the name) yellow, with a distinct rosy edge. Flares small; filaments short, very dark red. Stigmas cream-white; sheath white. Carpels pale green. Upright grower with broad leaves.

Website/Catalog  (1960)  Page(s) 14.  
 
Tree Peony Hybrids or Lutea Hybrids
Crosses of the Japanese Tree Peony (P. moutan or suffruticosa) onto P. lutea or P. Delavayi. These bloom through the first half of June, sometimes longer. [...]
Because these hybrids fall rather naturally into a few large color groups, I have listed them by color, with the suggestion that when ordering, you either specify a group number only, or allow me some latitude in substituting. [...]
1. The "Roman Gold" Group.
Yellow, clear or almost clear. Generally single.
Amber Moon  Deep soft amber yellow, edged and flushed crimson. Early, large. Fine garden plant.

Article (magazine)  (Jan 1955)  Page(s) 24.  
 
Varieties Raised in America. All by Professor Saunders...
The "Roman Gold Group." Yellow, clear or almost clear , generally single.
'Amber Moon,' (1948)

Article (magazine)  (Jan 1955)  Page(s) 56.  
 
Alphabetical Check List of Tree Peony Names In  Public Collections And/or Available in Nurseries 1954-1955
Lutea Hybrid, Yellow, 'Amber Moon', (Saund. 1948), [Gardens] Scott Foundation

Magazine  (Mar 1954)  Page(s) 21.  
 
Hybrid Tree Peonies
...By far the most important work with these hybrids has been done by Prof. A. P. Saunders and his originations now number about 80. Their color range is truly remarkable. [...]
The list of hybrid tree peonies following is up to date as far as we could make it.
Originations of A. P. Saunders, Clinton, N.Y.
Hybrids of suggruticosa, lutea and Delavayi.
Amber Moon, Single, deep yellow edged crimson. 1948.

Book  Page(s) 13.  
 
14392 in 20.1. Similar to Stardust Graft
1944 no stock

Book  Page(s) 42.  
 
Amber Moon 14392