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 Image Number D3093-1

Wild relatives of the genus Helianthus (sunflower) are abundant in U.S. gene banks, because sunflower is one of the few crops native to North America. Shown is a wild annual sunflower, H. annuus, one of 73 total species represented.


Photo by Peggy Greb.

640 pixels wide: (d3093-1.jpg)

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