Laurel is a dioecious plant, that is, it bears flowers, unisexual, in two different plants, one with male flowers and one with female flowers (which then bear fruit). Unisexuality is due to evolutionary phenomena of abortion starting from initially complete flowers. In fact, in female flowers there are 2-4 non-functional staminoids (i.e. residues of stamens), a similar phenomenon occurs for males, which have atrophic female parts (non-functional and atrophied). Question: every year, does the same plant always become male or always female or, depending on the years, can the same plant become male or female?