25 Plants That Literally Talk to Each Other (And How They Do It)

5. Willow Trees

Willow trees have evolved a unique way to help each other survive. When insects attack, willows emit airborne chemical signals that drift to neighboring trees. These receiving willows quickly ramp up their own chemical defenses, making themselves less appealing to herbivores.
This collective adaptation allows entire stands of willows to better withstand pest pressures, showcasing the power of plant-to-plant communication. See research