Kunzea pomifera.  The berries produced by the muntrie plant are about 1 cm in diameter, green with a tinge of red at maturity.  They are a groundcover in the wild, but now grown commercially they are trellised in the orchard for more efficient use of space.

Interestingly muntries were grown in England in 1889 and were one of the first species of Australian plants introduced into cultivation in England.

They are also known as native cranberries, munthari, muntaberry or monterry.