We all know about THC and CBD. According to this study, cannabigerol (CBG) apparently has interesting properties that showed positive effects on colitis (on mice).
http://www.ncbi.nlm.nih.gov/pubmed/23415610
http://www.ncbi.nlm.nih.gov/pubmed/23415610
In conclusion, CBG attenuated murine colitis, reduced nitric oxide production in macrophages (effect being modulated by the CB2 receptor) and reduced ROS formation in intestinal epithelial cells. CBG could be considered for clinical experimentation in IBD patients.