<Li> Legal history of cannabis in Canada </Li> <Li> Timeline of cannabis </Li> <Li> US Legalization Timeline </Li> <Tr> <Td> Regional (show) <Ul> <Li> Adult lifetime cannabis use by country </Li> <Li> Annual cannabis use by country </Li> <Li> Afghanistan </Li> <Li> Alabama </Li> <Li> American Samoa </Li> <Li> Arkansas </Li> <Li> Australia </Li> <Li> British Columbia </Li> <Li> California </Li> <Li> Chile </Li> <Li> Egypt </Li> <Li> Georgia (USA) </Li> <Li> Guam </Li> <Li> Idaho </Li> <Li> India </Li> <Li> Indiana </Li> <Li> Iowa </Li> <Li> Jamaica </Li> <Li> Kansas </Li> <Li> Kentucky </Li> <Li> Louisiana </Li> <Li> Maine </Li> <Li> Massachusetts </Li> <Li> Montana </Li> <Li> Morocco </Li> <Li> Nebraska </Li> <Li> New Zealand </Li> <Li> Nigeria </Li> <Li> North Dakota </Li> <Li> North Mariana Islands </Li> <Li> Oregon </Li> <Li> Palau </Li> <Li> Papua New Guinea </Li> <Li> Paraguay </Li> <Li> Portugal </Li> <Li> South Dakota </Li> <Li> Svalbard </Li> <Li> Switzerland </Li> <Li> Tennessee </Li> <Li> U.K. </Li> <Li> U.S. </Li> <Li> Uruguay </Li> <Li> Utah </Li> <Li> Vermont </Li> <Li> Virginia </Li> <Li> Virginia </Li> <Li> Wisconsin </Li> <Li> Wyoming </Li> <Li> American Indian reservations </Li> <Li> Marijuana tourism in the U.S. </Li> </Ul> </Td> </Tr>

What is the difference in strains of weed