Coltsfoot in UV light

Numéro d’image : 11547840
Coltsfoot in UV light
Coltsfoot in UV light. Coloured photograph of coltsfoot (Tussilago farfara) flowers showing the pattern of absorbed (dark areas) and reflected (yellow) ultraviolet (UV) light on the flower heads. These 'bull's-eye' patterns are known as 'nectar guides' and help to attract pollinating insects,which can see UV light. Humans are unable to see these patterns. This image was taken using a digital camera adapted to filter and detect UV light. The resulting monochrome image was coloured on a computer. UV light is outside the visible spectrum and does not have a true colour. See image B838/1219 for normal daylight version
Licence : Droits gérés
Crédit: Science Photo Library / Rorslett, Bjorn
Taille de l’image : 3879 px × 2607 px
Model Release : Non requis
Property Release : Non requis
Restrictions :
  • NOR

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