The common name of Euphorbia pulcherrima is "Poinsettia."
Poinsettia, or Euphorbia pulcherrima, is a popular holiday plant known for its bright red, pink, or white bracts that surround its small, yellow flowers. It is native to Mexico and is named after Joel Roberts Poinsett, the first U.S. ambassador to Mexico who brought the plant back to the U.S. in 1828. Poinsettias are often used as a decorative plant during the winter holidays and are grown as a houseplant in many parts of the world. Contrary to popular belief, they are not poisonous to humans or pets, but the sap can cause skin irritation in some people.