T he aspiring naturalist begins her or his craft in the warmer seasons, when it is easy to name and to know the trees and grasses and shrubs by their ...

Mulberry trees are considered invasive in some states, while others, such as Illinois, Kentucky, and Tennessee, have outlawed the fast-growing plant.

Scientists discovered that the red stigmas in wind-pollinated trees accumulate anthocyanin ... loft pollen grains from male flowers, known as catkins, to eventually attach onto female stigmas.

We have a tendency to disregard willow as scrubby trees that manage a little too well ... In spring, their fluffy catkins emerge early, loaded with alluring nectar and protein rich pollen ...