While trees don't communicate in the same way that humans do using spoken or written language, they do have ways of "talking" to each other and sharing information:

1. Chemical signals: Trees can release chemicals into the air or soil to warn nearby trees about threats like insect attacks.

2. Mycorrhizal networks: Many trees are connected underground by fungal networks that allow them to exchange nutrients and chemical signals.

3. Root grafting: In some species, roots of individual trees can fuse together, allowing for resource sharing.

4. Vibrations: Some research suggests trees may be able to detect vibrations in the ground and respond.

5. Allelopathy: Certain trees release chemicals to inhibit growth of competing plants nearby.

So while trees don't have a conventional "language", they do have sophisticated methods of communicating and interacting with their environment and neighboring plants. Scientists continue to study these complex communication systems in forests.