Sunflower is a genus of plants comprising about 52 species in the Asteraceae family, all of which are native to North America. The common name "sunflower" also applies to the popular annual species Helianthus annuus. It is distinguished technically by the ray flowers, when present, are sterile, and by the presence on the disk flowers of a pappus that is of two awn-like scales that are cauducous that is, easily detached and falling at maturity. Delicious sunflower seeds recipes.
