ARTWORK + > Field of Vision: A Garden for Others

Rudbeckia hirta (Black-eyed Susan) as seen reflecting ultraviolet light—showing the characteristic bull's-eye pattern around the flower's nectaries—which attracts butterflies, bees and other pollinators who perceive the ultraviolet portion of the spectrum from 400-300nm.

Image credit: Dr. Klaus Schmitt of Photography of the Invisible World

Visible-light and UV-light views of Rudbeckia
Visible-light and UV-light views of Rudbeckia
2015