Plants keep secrets, and holiday houseplants are no exceptions. Take the beautiful red flowers of the poinsettia plant, for example. Those are not flowers at all. And mistletoe? It takes advantage of others. Christmas cactus have a little something in common with mistletoe. Plus these plants often live under assumed names. Uncovering these and other plant mysteries is possible, with just a little bit of botany.
Poinsettias were used in dye making. The plant parts used to create reddish dye are often called flowers. But, the botanical secret of poinsettias is these plant parts are not flowers at all. They are bracts, or modified leaves.