Evening primrose flower photographed using ultraviolet film to reveal the 'honey guides' (dark areas) invisible to the human eye, but seen by insects.

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Evening primrose flower photographed using ultraviolet film to reveal the 'honey guides' (dark areas) invisible to the human eye, but seen by insects. The dark lines and patches here guide the insect to the collection of nectar stored in the centre and to the pollen on the anthers. See B760/200 for the same flower photographed on day light film.

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Size: 3231px × 2828px
Photo credit: © DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: botany, evening, flower, flowering, flowers, guide, guides, honey, insect, nature, plant, plants, primrose, ultraviolet, uv