Ultraviolet Flowers

Verbascum phlomoides L.
Verbascum phlomoides. Visible light
Visible light
Verbascum phlomoides. UV light
UV light, b/w rendition
(Hoya U-360, SB-140)
Both images: Nikon D1H @800 ISO, UV-Nikkor 105 mm f/4.5

© Bjørn Rørslett/NN

Organge Mullein has quite strong visual clues for the visiting pollinating insects. The hairy anthers are discerned by their violet colour and also absorb UV strongly, whilst the corrolla reflects UV.

It is readily apparent from the UV image that withering flowers no longer reflect UV, but buds not yet in blossom do.

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Last Update 6 February, 2005