…when you look at the interconnected network of plant roots and micorrhizal mycelia in any discrete ecosystem, you are looking at a neural network much larger than any individual human has ever possessed…

While humans and many other animals…have a specific organ the brain, which houses its neuronal tree, plants use soil as the stratum for the neural net; they have no need for a specific organ to house their neuronal system.

~ Stephen Harrod Buhner, Plant Intelligence

Misty Forest – photo from bigstockphoto.com