Some years ago I did some research on Poinsttias as a result of a member objecting to (their) use in decorating the sanctuary at Christmas. The "objector" claimed that the plants triggered her allergies. Not true! The Poinsettia does not produce pollen, however as a member of the same family of plants as the "Rubber Tree" it can cause a reaction (if touched) by those who are allergic to latex. These are long odds but possible. At Easter, however, we have limited the number of "Easter Lilies" because they can trigger an allergic reaction.