Striped maple trees often change sexes, with females more likely to die

Although pollen has covered cars for weeks and allergy sufferers have been sneezing, we think of sex as being the realm of animals. But plant sex can be quite interesting, especially in species that can have male or female flowers. In a study in the journal Annals of Botany, Rutgers University-New Brunswick researchers found that striped maple trees can change sex from year to year.
Source: EurekaAlert,