Ultraviolet Flowers

Aster tripolium L.
Aster tripolium. Visible light
Visible light
(L37C filter)
Aster tripolium. UV light
UV light
(FF , SB-140)
Both images: Nikon D1H , UV-Nikkor 105 mm f/4.5 @800 ISO

© Bjørn Rørslett/NN

In this violet-flowered maritime species, the visual and UV markings largely coincide. The buds show low UV reflectance together with the non-pollinated stigmas. These flowers are eagerly visited by a large number of insect pollinators, thus having a recognisable floral pattern across a broad spectral range would be beneficial in ecological terms.

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Last Update 1 October, 2002