set of dendritic self-contacting plant like l-system mathematical model

design graphic background set fractal art computer generated generative self-contacting binary recursion endless repeating l-system lindenmayer system mathematical model branched curve graph geometry geometric structure diagram truncated branching vector tree plant weed herb grass umbrella umbelliferous umbellate inflorescence panicle whisk wisp tree-like dendritic arborescent dendriform dendroid arboraceous dendritical iteration