» A Sketchbook on L-systems    Modeling and visualization of plants using parametric L systems.    http://coco.ccu.uniovi.es/malva/sketchbook/

» Algorithmic Botany    The definitive resource for L-Systems, this University of Calgary site is maintained by Lindenmayers collaborators. It contains many articles, and a full-length copy of 'The Algorithmic Beauty of Plants'.    http://algorithmicbotany.org/

» An Introduction to Lindenmayer Systems    A basic introduction to L-Systems with some colourful examples.    http://www.biologie.uni-hamburg.de/b-online/e28_3/lsys.html

» Christian Jacob    A collection of papers related to using Mathematica to generate L-Systems.    http://pages.cpsc.ucalgary.ca/~jacob/Publications/Publications.html

» Fractal Geometry: L-Systems    Introduction to L-systems by Michael Frame at Yale University. Includes background information.    http://classes.yale.edu/fractals/IntroToFrac/InitGen/LSystems/LSystems.html

» GDesign 1.0    Generative art tools that create complex 2D and 3D objects breeding LSystems, Cellular Automata, and Shape Grammars. Freeware by Umberto Roncoroni.    http://www.digitalpoiesis.org

» L-System 4    A program which uses text based instructions (seed files) to build complex 3D objects.    http://www.geocities.com/tperz/L4Home.htm

» L-Systems Explorer    A Windows-based L-System program.    http://www.generation5.org/content/2002/lse.asp

» L-Systems Tutorial    A mathematical introduction to how L-Systems work.    http://www.complexity.org.au/vlab/tutorials/l_systems/

» L-systems    A guide to the theory behind L-Systems.    http://www.math.okstate.edu/mathdept/dynamics/lecnotes/node12.html#SECTION00040000000000000000

» LGrammar    A graphics tool for Lindenmayer systems in C and Java.    http://robotics.ee.uwa.edu.au/lgrammar/

» Laurens Lapre's Lparser    Windows software and some information on LSystems and related ideas.    http://home.wanadoo.nl/laurens.lapre/

» Lindenmayer System    Overview of L-systems at Wolfram MathWorld. Includes supporting links and demonstration notebook.    http://mathworld.wolfram.com/LindenmayerSystem.html

» Lindenmayer Systems in Architecture    Architectural applications of L-systems. Includes background and methods.    http://www.mh-portfolio.com/lsystems.html

» Recursive Productions and Grammars    A guide to the rules of strict grammars including L-Systems.    http://www.cs.rit.edu/~afb/20013/plc/slides/grammars.html

» Wikipedia L-systems    A well rounded introduction to L-Systems.    http://en.wikipedia.org/wiki/Lindenmayer_system

» lsystem    A simple implementation of Lindenmayer systems written in Python.    http://www.alcyone.com/software/lsystem/