Okay I made my own weird ass form of Ley that will double as a sort of food source for the ecosystem in the Plain's of Madness [s]Which hopefully I will finish over the next two turns or so and just randomly throw stuff in from there[/s]

But yeah basically they're trees that have Ley (that is what we're calling them right?) fungus infused with chaotic energy from the crystals they grow on in the centre. Then these produce spores which float out of openings in the bark and will either get taken by the wind and hopefully land on another deposit of crystals or just fall on the dead soil and wait to be eaten by a creature. Eating the spores can cause madness in mortals that aren't adapted to eating them.