Viburnum lantanoides ( Viburnum - Witch Hobble )

Seen along Chimney Tops and Appalachian trails
The real flowers are small and in the center of the cluster. The sterile flowers are large and serve to attract insects.

Great Smoky Mt Nat. Pk. - 4/18/2011 -Chimney Tops trail
photos by H & M Ling

Viburnum -  Witch Hobble