Here's an interesting fact:
Sassafras albidum root contains 16,000 ppm safrole
Myristica fragrans seed (Nutmeg) contains 2,720 ppm safrole
You can search for any other plants containing certain chemicals at http://www.ars-grin.gov/duke/highchem.html (http://www.ars-grin.gov/duke/highchem.html)
Resistance to government is so valuable on certain occasions that I wish it to be always kept alive.