What is the staff carried by the Greek god Hermes called?

The staff carried by the Greek god Hermes is called the caduceus.

The caduceus is traditionally shown as a staff with two snakes winding around it and wings at the top. In Greek mythology it identifies Hermes as a herald and messenger, roles involving communication, travel, and negotiation.

The caduceus is frequently confused with the Rod of Asclepius, which has a single snake and is associated with medicine. The two symbols have different mythological histories, although modern institutions sometimes use the caduceus in medical contexts.

Hermes’s other attributes include the Talaria, or winged sandals, and the petasos, a traveler’s hat. Depictions do not always include every attribute, so the staff’s form is the most useful clue when identifying the caduceus.