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Common sunflower - Wikipedia
History of the Domestication of Sunflowers - ThoughtCo
History - sunflowernsa.com
Sunflowers: Their Ancient Roots and Modern Popularity
Sunflower: An American Native - MU Extension
#PlantoftheMonth: Sunflowers | McClung Museum of Natural …
Traditional Native Americans' uses for sunflowers
Sunflowers: Origin and Usage by Native Americans - Star-Herald
American Indian Health - Health - University of Kansas