Metamorphic Leaves

This article introduces an algorithm influenced by Goethe's concept of metamorphosis capable of generating a wide range of parametric leaf forms. Metamorphosis is defined as alternating stages of expansion and contraction that are observable during the development of flowering plants. This principle is extended toward leaf morphology, where two main developmental trajectories are outlined. By formulating simple two-dimensional geometric rules, the author tests the concept of metamorphosis on parametric leaf forms.