The poinsettia prefers wooded areas and ravines that are moist and wet, but will also make rocky hillsides its home. It's native to Mexico and Central America. The plant's popularity traces to Joel R. Poinsett, who introduced it to the plant-lovers culture while he served as the U.S. minister to Mexico in the late 1820s. There are different varieties of this distinctive plant, including white, striped bracts, pink, and mottled. It is the solid red varieties, which offer different shades, that are usually in the greatest demand during Christmas. Source: Britannica.com
Interesting fact:
Poinsettias are commonly sold around Christmas as an ornamental plant.