H. macrantha flowers have both male and female reproductive organs. To avoid mating with themselves, individual flowers go through a male phase and then a female phase. They rely on hummingbirds to ...

When pollinators land on a flower, they're on a mission: They're looking for sweet nectar to eat and specks of nutritious pollen to bring back to their young. But how do insects know where to find ...

For people with hay fever, grass pollen is the most common trigger for symptoms. However, people with pollen allergies can also be allergic to weed, tree, or flower pollen. Within these groups, some ...

A magnolia tree blooms Tuesday, April 7, 2026, in Bethlehem. The Lehigh Valley in for another tough allergy season, experts say, as this year’s warm spring has brought many pleasant sunny days, but it ...