Adds datura.

http://en.wikipedia.org/wiki/Datura_stramonium

This odd-looking plant's tiny black seeds are too dangerous and unpredictable to safely consume raw, but contain powerful chemicals that can be used to craft some interesting chemical concoctions. 
Uh, this is countering the stat penalties something fierce.  20 stim == +20 speed, +3 IN, +2 PE, and +2 DX.