marijuana
Wednesday
Thursday
Customers browse samples at Shango Cannabis shop, after the first day of legal recreational marijuana sales began at midnight in Portland, Ore., Thursday. Steve DiPaoloa/Reuters /Landov hide caption
Monday
Friday
Partygoers attend a Prohibition-era themed New Year's Eve party celebrating the start of retail pot sales, at a bar in Denver on Dec. 31, 2013. Brennan Linsley/AP hide caption
Awesome Tips, Dude: Denver May Allow Pot In Bars, Restaurants
Friday
Hard to resist. But if they're marijuana edibles, not such a treat. James A. Guilliam/Getty Images hide caption
Wednesday
Ohio's proposal to legalize recreational and medical marijuana is being met with opposition from residents who generally support legalizing pot. iStockphoto hide caption
Fears Of Marijuana 'Monopoly' In Ohio Undercut Support For Legalization
Wednesday
More Washington Drivers Use Pot And Drive; Effect On Safety Disputed
Wednesday
Its legal status and wide range of uses make marijuana a tough plant to regulate — or even to advise farmers about. Here, young marijuana plants are seen at a growing facility. Elaine Thompson/AP hide caption
Saturday
Sen. Rand Paul waves to supporters in Denver after he spoke to a closed meeting of cannabis business leaders earlier in the day. David Zalubowski/AP hide caption
Tuesday
An Aka man smokes hemp while hunting in the Central African Republic. Veronique Durruty/Gamma-Rapho via Getty Images hide caption
Marijuana at a medical marijuana dispensary in Los Angeles. Twenty-three states and the District of Columbia have legalized medical marijuana. David McNew/Getty Images hide caption
Wednesday
Using chemicals to control bugs or mold is common among commercial cannabis growers. But with no federal oversight, experts are concerned growers may be using dangerous pesticides. Ted S. Warren/AP hide caption
Concern Grows Over Unregulated Pesticide Use Among Marijuana Growers
Wednesday
Grand Daddy Purple, Skunk #1, Sugar Daddy Courtesy of Chronicle Books hide caption