From the soil that separated the Heart of Sky from the Heart of the Sea, grew the tree of Maya life (world tree, or yaxche).    From Wordnik.com.  [The Hero Cycle in Maya Myth & Culture] Reference

Among the Yucatec Maya, the yaxche was often depicted as a Ceiba tree (sometimes as a stalk of maize) and symbolized the cardinal points.    From Wordnik.com.  [The Hero Cycle in Maya Myth & Culture] Reference