biofuel plant - jatropha

jatropha

It is not a food source, grows in wasteland and arid conditions, takes little water, can be cold pressed.

So far I have heard of three promising horses:
cellulistic ethanol- makes ethanol
algea - makes biodiesel
jatropha - makes biodiesel

Any thoughts as to which will be the winner or do you know of another horse?

http://en.wikipedia.org/wiki/Jatropha_curcas

http://en.wikipedia.org/wiki/Jatropha

http://www.csmonitor.com/2007/0508/p01s03-wosc.html