computer generated self-similar l-system branching tree fractal - generative art

fractal art l-system lindenmayer rewrite system computer generated generative model self-similar self-similarity abstract branching self-contacting binary recursion endless repeating digital morphogenesis pattern design ornament decor tracery tree plant weed herb grass branch leaf fern brake umbrella umbelliferous umbellate inflorescence panicle whisk wisp mathematical mathematics curve graph