This term is used for plants that only have one flowering event and then die. It's used most often in conjunction with describing some of the taxa of Arecaceae (palms) and some species of bamboo, but rarely used otherwise. Many annuals flower over a period of time and can have flowers and seeds on the same plant at the same time, thus they are not hapaxanthic, because flowering does not lead to death. A similar term is monocarpic, for a plant that bears fruit once and then dies. A related term is pleonanthic, again used with Arecaceae (palms) and some bamboos for stems that flower more than once.