Book  (Jan 1999)  Page(s) 632.  
 
P. lactiflora 'Felix Crousse' a deep pink double with a red center

Website/Catalog  (1983)  Page(s) 27.  
 
Pivoines de Chine (Lactifolia) ... Felix Crousse : rouge

Website/Catalog  (1970)  Page(s) 23.  
 
Félix Crousse : Rouge éclatant H 70 cm

Website/Catalog  (1966)  Page(s) 40.  Includes photo(s).
 
Félix Crousse. Rouge éclatant. T[ardive].

Website/Catalog  (1948)  Page(s) 67.  
 
Peonies
Strong, 3 to 5 eye divisions
Felix Crousse. Ruby red...40¢

Website/Catalog  (1938)  Page(s) 8.  
 
Peonies
Felix Crousse (Late Mid-season) Rich ruby red, many blooms. 40¢

Website/Catalog  (1931)  Page(s) 21.  
 
Double Chinese peonies...Paeonia sinensis Felix Crousse, brilliant fiery red, floriferous, 60/80 cm, June, 1,50 Marks [10] 13,50 [100] 120,--

Book  (1928)  Page(s) 56.  
 
A List of Fifty of the Best Inexpensive Varieties
Red Varieties
Felix Crousse (Crousse).  8.4.  Red.  A deep rose red flower of medium size.  A very profuse bloomer.  The flower consists of a central bomb of narrow incurved petals surrounded by broad prominent guard petals of the same color as the center.  There is an entire absence of stamens.  This variety is one of the greatest of all cut flower reds.  Felix Crousse is also a wonderful show flower, there seldom being a show of any size in which it is not found among the winning reds. 

Website/Catalog  (1927)  Page(s) 33.  
 
Paeonia sinensis...Felix Crousse, light wine-red...2,-

Website/Catalog  (1927)  Page(s) 14.  
 
Felix Crousse (Crousse 1881) 
American Peony Society Rating of 8.4 (75 votes)
Bright ruby red of even shade.  Bomb type.  A good commercial cut-flower red.  Good keeper.  Early midseason.  Each $1.00