set of dendritical recursion plant like l-system mathematical model

template design graphic pattern concept abstract fractal generated generative self-similar rewrite self-similarity self-contacting binary recursion endless repeating l-system lindenmayer system mathematical model branched graph structure mathematics truncated branching vector tree plant weed herb grass inflorescence panicle whisk wisp plant tree-like dendritic arborescent dendriform dendroid arboraceous dendritical root iteration progression