A tree whose roots hold the whole world together, and whose branches reach the planes and beyond. The tree is unique, and it produces haoma seeds, which have remarkable properties.

The tree's lower branches drape over the entire world, but they cast no shadows and seem to have no form unless one is standing upon them. The upper branches reach out into the Upper Planes, while some of the roots reach down into the Lower Planes. The World Tree has roots, parts of the trunk, and branches that each represent an Aspect of Shem. The sap of the World Tree is the world's blood.

The World Tree is home to a wide variety of creatures.