Where is the THC located on a marijuana plant?

Is it the actual leaf or what?
Okay so just tell me where on this:
http://newsbusters.org/static/2009/11/Marijuana%20Confessions%20Blitzer%20Knows%20What%20Plant%20Smells%20Like,%20Dobbs%20Knows%20What%20It%20Looks%20Like.jpg

The stuff you want is. thanks.
3 answers 3