Red poinsettias (© Yarygin/Getty Images)
During the holiday season, poinsettias are often seen adorning homes and festive displays, serving as symbols of goodwill and community spirit. Joel Robert Poinsett, a botanist and former minister to Mexico, introduced the plant to other countries to spread appreciation of its beauty. Poinsettias can be found in nature from Mexico to Guatemala, and the ancestors of the modern, commercially available version have been traced to the Mexican state of Guerrero. The crimson-leaved plant was used by the Aztecs as a red dye and as a fever-reducing medicine.