Happy National Poinsettia Day! Here are 5 interesting facts about these holiday favorites! 1. - They're not actually flowers - Those gorgeous red "petals" are modified leaves called bracts. The real flowers are the tiny yellow buds in the center. 2. - Poinsettias aren't poisonous - Despite the myth, they won't harm your pets or kids. A study showed you'd need to eat 500 leaves to get sick (but still, don't snack on them). 3. - They're wild in Mexico - In their native habitat, poinsettias grow as