Lintermann, BerndDeussen, Oliver2015-02-152015-02-1519981467-8659https://doi.org/10.1111/1467-8659.00216We present a modelling method and graphical user interface for the creation of natural branching structures such as plants. Structural and geometric information is encapsulated in objects that are combined to form a description of the model. The model is represented graphically as a structure graph and can be edited interactively. Global and partial constraint techniques are integrated on the basis of tropisms, free-form deformations and pruning operations to allow the modelling of specific shapes. We show examples to illustrate the design process and evaluate the user interface.A Modelling Method and User Interface for Creating Plants10.1111/1467-8659.0021673-82