
For while she spoke, the ground began to rise,
And gather'd round her feet, her legs, and thighs;
Her toes in roots descend, and spreading wide,
A firm foundation for the trunk provide:
Her solid bones convert to solid wood,
To pith her marrow, and to sap her blood:
Her arms are boughs, her fingers change their kind,
Her tender skin is harden'd into rind.
-- Ovid, "Metamorphoses"