Pelargonium in UV

The red pelargoniums in our garden have such perfect and saturated red petals that I hadn’t imagined they could have striking, invisible UV patterning. Almost all UV markings I’ve seen in flowers before have some subtle visible suggestion of markings. However, even this (presumably selectively bred) cultivar has clear UV-absorbing petal sections. Here I’ve modelled the colours that different animals would see:


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