Poinsettias are the quintessential Christmas flower. Though they are famous for they brilliant reds (almost 80% of commercially grown poinsettias are red), they also come in beautiful yellows, whites and pinks as well as variegated varieties. History & Lore Poinsettias, or more scientifically Euphorbia pulcherrima, are native to Mexico and can be found growing wild in tropical forests down the …