The locusts we see are usually green. This coloration provides protection by allowing locusts to blend into their green surroundings to avoid predators. However, when locusts gather in high population ...

Young black locusts bloom vibrantly, sunlight dapples a lush forest floor, and the Great Hungarian Plain stretches to a clear sky. A model for climate-resilient forestryAs climate change increases ...

Plants need nitrogen to grow. Many legumes meet this need through a symbiotic relationship: They harbor bacteria that fix atmospheric nitrogen and make it available to the plant. Until now, it was ...

The coming of autumn often makes trees harder to identify — but sometimes, it does the opposite. The black locust (Robinia pseudoacacia) is a case in point. In summer, its bluish-green, oval-shaped, ...

A green solitary locust (left) sits alongside black/brown sociable (or 'gregarious') locusts. This image is free to be reused, as long as it is credited as appropriate.

I have received several inquiries from readers about the many roadside trees turning brown this summer. The question is usually, “What is killing all of those trees?” The trees in question are likely ...

Black locust is a member of the legume family; it can “fix nitrogen” in the soil. It is native to the Appalachian Mountains, from Pennsylvania to Alabama. However, in the last century, it has spread ...

On this edition of ID That Tree, meet the black locust, which is recognizable by its small, rounded pinnate leaflets; gray bark with rough, long running ridges with orange undertones; and paired ...