Ultraviolet Flowers

Erysimum hieracifolium L.
Erysimum hieracifolium. Visible light
Visible light
(L37C filter)

Erysimum hieracifolium. UV light

UV light
(U-360 + BG-38, SB-140)
Nikon D70, UV-Nikkor 105 mm f/4.5, @800 ISO

Both images © Bjørn Rørslett/NN

Tall Rocket has petals which absorb UV all over their surface, thus the flower is rendered in UV complementary colours for an insect with UV vision. The anthers are UV-dark, too, whilst the buds and non-fertilised stigmas exhibit a strong UV fluorescence.

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Last Update 19 July, 2005