Book  (1936)  Page(s) 169.  
 
Constans, Mme. (hybrid wichurana) L'Hay 1902; tender pink, climbing habit.

Magazine  (8 Jul 1911)  Page(s) 326.  
 
The Parentage of Roses.
The following list of the world's Roses and their parentage has been compiled by Mr. Robert Daniel, 38 Russell Road. Fishponds, Bristol, and by his kind permission we are enabled to publish it...
Madame Constans... Hybrid Wichuraiana, Gravereaux, 1902, R. wichuraiana X Souv. de la Malmaison

Book  (1902)  Page(s) 161.  
 
Rosa Wichuraiana
6240. Madame Constans....(L'Hay 1902), rose tendre

Other  (1902)  
 
Roseraie de L'Haÿ Collection Horticole No. 6240 [also pencilled P-LII-11]
Madame Constans
Issue de Wichuraiana X ....
Obtenteur L'Haÿ  année 1902
Section I. Synstylae Espèce R. wichuraiana
Race H. Wich.
Arbuste folioles arrondies
Coloris rose tendre