Pennantia is the sole genus in the plant family Pennantiaceae. In older classifications, it was placed in the family Icacinaceae. Most authorities have recognised three or four species, depending on whether they recognised Pennantia baylisiana as a separate species from Pennantia endlicheri. Mabberley, however, has recognised only two species. Pennantia species grow naturally in New Zealand, Norfolk Island, and eastern Australia. In Australia, P. cunninghamii grows across a broad latitudinal natural range (nearly 3,000 km (1,900 mi)), from the south coast of New South Wales northwards through to north eastern Queensland.