This image was created by Rick Thompson and is available for purchase in a variety of sizes through IStock.
Hints of purple highlight this fully mature marijuana flower. The plant’s surface is covered with silvery trichome glands, which contain the plant’s powerful chemicals- including THC. Pictured in an indoor garden, the marijuana plant is colorful and ready for harvest.
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http://www.istockphoto.com/photo/mature-marijuana-flower-gm490506030-75238359