Biodiversity and Evolution of Sunflowers

By ellorin
  • 3000 BCE

    Sunflowers in Arizona and New Mexico

    About 3000 B.C., sunflower was cultured by American Indians It was a common crop among American Indian tribes throughout North America.
  • 3000 BCE

    Native Americans

    Native Americans cultivated sunflower and obtained different varieties with different seed colors ranging from black, white and red, and the black sunflower seed with white stripes
  • 2000 BCE

    Sunflowers in Eastern North America

    Sunflower was naturalised 4000 years ago by Native Americans. The plant was transformed from a highly branched, many headed plant with small seeds into the unbranched crop plant containing larger oilseeds.
  • 1000 BCE

    Sunflower in Europe

    Late 16th century, Sunflower was brought to Europe. Sunflower was used as an ornamental plant
  • 1000 BCE

    Sunflower back to U.S

    29th century, Russian improved sunflower seed and exported again to the United States