Website/Catalog  (1929)  Page(s) 15.  
 
Descriptive List 
86—Bertrade (Lemoine 1909)—Creamy white, sulphur center; strong; vigorous grower.

Book  (1928)  Page(s) 84-5.  
 
Descriptive List of Chinese Peonies
Bertrade. (Lemoine, 1909.) 8.6.
Double type; very large; late midseason. A rounded, incurved white bloom, shaded yellow at base of petals, with many stamens mixed in collar, and the center petals occasionally have a reddish tinge at edges; unpleasant odor. Of moderate height and floriferousness; stems stiff. Foliage good.
Needs to become established before it displays its true character. The flower is very regular and handsome, developing a symmetrical crown when fully open.

Website/Catalog  (1910)  Page(s) 13.  
 
Pivoines herbacées...Variétés nouvelles...Bertrade (Lem.); plante assez élevé, tiges forts, fleurs moyennes, blanc crème à centre soufré ....2fr 50

[no longer listed in the 1928 catalogue]