Comparison of a Ground Ivy (Glechoma hederacea) flower in visible light (top), ultraviolet light (middle), and infrared light (bottom).
In visible light the flower appears violet with a darker purple colour around the throat.
In ultraviolet light the flower appears very similar, with a darker area around the throat.
In infrared the flower's appearance is monotone. There is no dark area around the throat and the brightness of the flowers is matched by that of the plant's leaves.
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