While some trees are dioecious, meaning there are distinct male and female individuals, the vast majority are not. “the males produce millions of flowers, and each flower has hundreds of anthers that produce tons of pollen The female trees produce seeds They produce no pollen,” he explained. However, because males produce pollen, areas with only male plants can have high pollen in the air and, therefore, be inhospitable to people with pollen allergies. Male trees produce pollen, while female trees bear fruit or seeds
Common dioecious trees include ginkgo, holly, ash, boxelder, and osage orange. Instead dioecious male trees produce only pollen He coined the phrase botanical sexism, telling the guardian he had seen evidence of such practices in london, christchurch, in new. Ogren claims that once all of these male trees matured, there was a major increase in city pollen Thus, according to ogren, preference for the planting of male trees and the subsequent rise in pollen levels is responsible for the drastic rise in pollen allergies and asthma. As a theory, botanical sexism is rather simple
