The Algorithmic Beauty of Plants
n=4, angle=90, axiom='F-F-F-F', rules={ 'F':'FF-F-F-F-F-F+F' }
n=4, angle=90, axiom='F-F-F-F', rules={ 'F':'FF-F-F-F-FF' }
n=3, angle=90, axiom='F-F-F-F', rules={ 'F':'FF-F+F-F-FF' }
n=4, angle=90, axiom='F-F-F-F', rules={ 'F':'FF-F--F-F' }