What is the government type in Australia characterized by a hereditary head of state?

In Australia, the government type characterized by a hereditary head of state is a constitutional monarchy. This system means that the monarchy is recognized as the official head of state, which is held by the Queen or King, but their powers are largely ceremonial and are regulated by a constitution. In practice, the actual governance of the country is administer by elected officials, specifically the Prime Minister and Parliament.

This form of government ensures that while there is a monarchy, the powers are confined within the bounds of the constitution, ensuring the rule of law and the democratic rights of citizens. The monarch's role is mainly symbolic, representing continuity and tradition, while the governance and decision-making process is carried out by elected representatives.