This image was created by Rick Thompson and is available for purchase in a variety of sizes through IStock.
Marijuana (cannabis) displayed on a green background with extra space for ad copy or a corporate logo. The green is textured and provides an interesting background for text. A horizontal image.
Click on the image to view it in greater detail, or to make a purchase.
http://www.istockphoto.com/photo/cannabis-on-a-green-background-horizontal-gm486029282-72749851