This code is accompanying the GECCO 2003 paper on Demonstrating the Evolution of Complex Genetic Representations: An Evolution of Artificial Plants.
I resurrected the code, which was previously found at myhomepage/source-code/plant.07.1.tgz, which I think is a stripped down version of the original plantcode-03-04-11.tgz. This version seems to only load a file of genetic codes and display them in an OpenGL. The original code plantcode-03-04-11.tgz might include also the evolution.
The present code includes the decoding of grammars to the plan structure and display.
To compile
cd projects/plant
make
and run ./x.exe