Ultraviolet Flowers

Geum urbanum L..
Geum urbanum. Visible light
Visible light
(L37C filter)
Geum urbanum. Ultraviolet light
UV light
(U-360 + CC20C, SB-140)
Nikon D1H, UV-Nikkor 105 mm f/4.5, @800 ISO

Both images © Bjørn Rørslett/NN

Wood Avens has small, yellow-coloured flowers which exhibit intermediate UV reflectance of the petals, and this in conjunction with anthers having strong UV absorbance give the flowers a two-zoned appearance.

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Last Update 6 February, 2005