Ultraviolet photograph of the flowers and flower buds of Cornus alba 'Elegantissima', a cultivar of the Red barked Siberian Dogwood. Elegantissima is notable for its variegated leaves.
The plant's appearance is quite different in ultraviolet to how it looks in visible light. In UV the variegation of the leaves is lost, with the edges that normally appear bright just as dark as the centres. The flower buds appear dark, rather than the white they appear to the human eye. The open flower petals, while not as dark as the buds, also appear quite dark.
Channel mixer used in PS CS5 to modify colour