Mentha diemenica Spreng.

A herb which keeps growing from year to year. It has a vigorous creeping rhizome. It grows 10-30 cm high and spreads 50-200 cm wide. The stems are square. They often form roots at the nodes. They branch and are hairy. The leaves are 0.4-2 cm long by 0.2-0.6 cm wide. They are oval or sword shaped. They are opposite and broadest near the base. They have short stalks. The flowers are small and pale purple or pink. They occur in clusters of 2-8 in rings in the axils of upper leaves. The fruit is small.

Moist, usually sunny situations up to the montane zone. Open forests and grasslands, usually on sandy soils.

The leaves are used to flavour savoury dishes as well as desserts.

Plants can be grown from seed, cuttings or division of the clump.