Begonia tuberhybrida is a garden form of tuberous begonia. Illustrated is the double flowered variety.
Keywordsflower, begonia, garden form, begonia tuberhybrida, tuberous begonia, double flowered begonia tuberhybrida, double flower
GalleriesFlowers and Shrubs: B
L. H. Bailey Standard Cyclopedia of Horticulture (New York, New York: The MacMillan Company, 1917) volume 1, page 475