The flowers of the poinsettia are actually small greenish-golden cups, called cyathia. They lie at the center of the plant's red, pink or white bracts--the leaves.
About this Author
Gwen Bruno has been a full-time freelance writer since 2009, with her gardening-related articles appearing on DavesGarden. She is a former teacher and librarian, and she holds a bachelor's degree in education from Augustana College and master's degrees in education and library science from North Park University and the University of Wisconsin.