Incidentally the people theorizing about trees communicating through roots are actually saying trees are communicating via webs of root-connected fungi which ac

Incidentally the people theorizing about trees communicating through roots are actually saying trees are communicating via webs of root-connected fungi which act as the connections in between the trees. It's literally underground tunnels of fungi (mycelia) within which the chemical signals are transferred. Colloquially referred to as the Wood Wide Web; technically it's networks of mycorrhizal fungi.