This Post is not about the sunflower you might typically think of. The flower I know as a sunflower is of the Helianthus (1) species. This plant (H.annuus) is also a Mexican plant and although it has been posited that this plant was introduced into México by the Spanish (Heiser 1998) (2), there is evidence (Lentz etal 2008) that this plant arose in the southwestern … Continue reading Tithonia : The Mexican Sunflower