Ultraviolet Flowers

Campanula trachelium L.
Campanula trachelium. Visible light
Visible light
Campanula trachelium. 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 no traditional visual indication of a bull's-eye pattern. UV reflectance of the outer petals and young buds is very high, but the marked centre area is confined to the stigma and pistils just like the patterns exhibited by other Bluebell species. There is evidence of fluorescence from the nectaria as well.

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Last Update 3 August, 2004