A rim of moss a foot up the trunk of the tree from its roots. Must be where the rain splashes up. But to me it looked like feet or hands reaching down into the soil. If the roots grasped the soil would squidge up like mud. Spurting up because of the force and strength of the tree. What would happen if trees had muscles. If a simple ivy can twist and squeeze a stem perhaps a tree could tighten round a car or a building. Seeds get into cracks and grow and break stone. Time allows them to do this. The growth is slow. But it can change the landscape.