Poinsettias are one of the more popular potted plants in the United States grown for the Christmas market. Most poinsettias are sold within a six-week period leading up to Christmas, with sales totaling approximately $60 million.
There are more than 100 varieties of poinsettias available, but red poinsettias remain the favorite. The colored parts of poinsettias that most think are flowers are actually modified leaves, called bracts. The true flowers are the round, yellow structures, or cyathia, in the center of the bracts.