Marsh marigold (Caltha palustris) in UV (ultraviolet) light showing bull's eye nectar guide pattern visible to insects

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Marsh marigold (Caltha palustris) in UV (ultraviolet) light showing the bull's eye nectar guide pattern visible to insects and attractive to pollinators. These pattern are invisible to us in daylight. Compare to image ref: E0EDYJ which shows the same flower in daylight.

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Size: 4293px × 4096px
Photo credit: © Alchemy / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: anther, blue, bull, bulls, bullseye, caltha, comparison, eye, eye-view, flower, fluorescence, fluorescent, guide, insect, light, marigold, marsh, nectar, palustris, pattern, petal, petals, pollen, pollination, pollinator, stigma, ultra, ultra-violet, ultraviolet, uv, view, violet, visible, vision