Offbeat Pictures of The Week - April 23

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Marijuana leafs glow purple under grow lights at the Black Dog LED... News PhotoBestpix,Denver,Dog,Glowing,Growth,Horizontal,Human Interest,Leaf,Luminosity,Marijuana - Herbal Cannabis,Offbeat,Purple,USAPhotographer Collection: Denver Post Copyright - 2014 The Denver Post, MediaNews Group.DENVER, CO - APRIL 19: Marijuana leafs glow purple under grow lights at the Black Dog LED booth during the High Times Cannabis Cup at Denver Mart in Denver, Colorado on April 19, 2014. Event organizers are expecting 37,000 people to attend the two day cup in Denver. (Photo by Seth McConnell/The Denver Post via Getty Images)