3 favorite votes.  

White, near white or white blend Floribunda.
Registration name: Snowbank
Exhibition name: Snowbank

Bred by Jean Henri (J.H.) Nicolas (United States, 1936).
Introduced in United States by Jackson & Perkins Co. (Newark, NY) in 1938 as 'Snowbank'.

Polyantha.  

White, light pink shading.  Mild fragrance.  Average diameter 3.5".  Large, double (17-25 petals), cupped bloom form.  Blooms in flushes throughout the season.  

Short.  Dark green, leathery foliage.  

USDA zone 6b through 9b (default).  

United States - Patent No: PP 279   VIEW USPTO PATENT