Book  (1995)  Page(s) 48.  Includes photo(s).

Book  (Nov 1994)  Page(s) 117.  
 
The parentage given, Rosa rugosa x 'Sombreuil' is very doubtful. Flowers: loosely semi-double, white, slightly blush-tinted in the bud. 6' x 5'

Book  (Nov 1993)  Page(s) 32, 33.  Includes photo(s).
 
Blanc Double de Coubert Rugosa... fresh snow-white with a fragile texture and generous fragrance... the offspring of R. rugosa and 'Sombreuil', it was bred in France in a village called Coubert in 1892...

Book  (Sep 1993)  Page(s) 78, 79.  Includes photo(s).
 
Cochet-Cochet claimed that the 1891 'Blanc Double de Coubert' was a cross between Rosa rugosa and 'Sombreuil', but few authorities have believed him; it looks to be pure-bred R. rugosa. Balls in wet weather. No hips. Repeats. Fragrant.

Book  (11 Jun 1993)  Page(s) 10, 11.  Includes photo(s).
 
R. rugosa x 'Sombreuill'. Cochet-Cochet (France) 1892. Description. Loosely double, snow white blossoms with a strong fragrance.

Book  (Apr 1993)  Page(s) 53.  
 
Hybrid Rugosa (Shrub) white, 1892. R. rugosa x 'Sombreuil', Cochet-Cochet. Description.

Book  (Feb 1993)  Page(s) 101.  Includes photo(s).

Book  (1993)  Page(s) 116.  Includes photo(s).

Book  (1993)  Page(s) 70.  Includes photo(s).
 
[Listed under "Wild Roses and Their Cultivars"] Description. Cochet-Cochet (France) 1892. Summer flowering. Height: 4 ft. Wonderfully scented.

Book  (1992)  Page(s) 318.  
 
Flower: white, double, fragrant, 2- to 4-inch. Blooms all summer. 5 to 7 feet high. Wrinkled foliage. Hips in the fall.