Is it a starfish? Is it an orchid? No, it's Superformula.
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Gielis, J. A generic geometric transformation that unifies a wide range of natural and abstract shapes. American Journal of Botany, 90, 333 - 338, (2003).
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Whitfield, J. Maths gets into shape. Nature (2003). https://doi.org/10.1038/news030331-3