Ultraviolet Flowers

Digitalis purpurea L.
Digitalis purpurea. Visible light
Visible light
Digitalis purpurea. UV light
UV light
(FF + CC20C, SB-140)
Both images: Nikon D1H @800 ISO, UV-Nikkor 105 mm f/4.5

© Bjørn Rørslett/NN

This species has strong visual clues for the visiting pollinating insects. The outer lip of the tubular flower is set apart by its high UV reflectance, and together with spots of low UV reflectance (not entirely coinciding with the visual marks), a guide pattern is created.

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Last Update 1 October, 2002