A cactus i made some time ago.
you can adjust the number of cactus spines in the particle system, i set the number of cactus spines to zero to keep the file small, for the preview image I set the number of spines on 8000. the zip file includes two seamless textures for the cactus.
feel free to use these cactus for your projects :)
<img src="http://fc09.deviantart.net/fs71/f/2011/354/3/c/freighter_finalrender_by_dennish2010-d4jndnc.jpg" alt="" width="800" height="467" />
This is great! I especially like the options to have fewer or get rid of the spines for cactuses that are further away! Great work!!
This is a great cactus, I'm surprised no one has commented on this yet :)