The Christmas flower is also known as the poinsettia, or Christmas Star. It's a festive and colorful plant that symbolizes the holiday season, and it's often used in Christmas decorations and arrangements. The poinsettia has bright red leaves, also known as bracts, that resemble the shape of a star, hence its nickname "Christmas Star." The plant is native to Mexico, where it's known as "La Noche Buena," or "the night of good." It's a popular gift during the holidays due to its vibrant colors and festive symbolism.