All flowers sterile and forming a greenish to white snowball-like dense head 5-6 cm wide.
This is an old cultivar dating back to at least the 16th century in Europe, possibly originating from Gelderland, Holland, and the original Guelder Rose, although the name is now applied in general to all forms. ['Sterile']
V. macrocephalum Fort. f. macrocephalum, Chinese Snowball, also originated in cultivation but in China; it too has flowers all sterile, forming a large round head 7-15 cm wide in late spring, the individual flowers more than 2 cm wide. The shrub has entire, not lobed leaves.