Prostanthera linearis

Prostanthera linearis, commonly known as narrow-leaved mint-bush is a species of flowering plant in the family Lamiaceae and is endemic to eastern Australia. It is an erect, faintly aromatic shrub with glabrous, narrow egg-shaped to linear leaves and white flowers that are often tinged with pinkish-mauve.

Description
Prostanthera linearis is an erect shrub that typically grows to a height of 1–3 m and is faintly aromatic. It has glabrous narrow egg-shaped to linear leaves that are 15–45 mm long and 2–3 mm wide on a petiole less than 2 mm long. The flowers are arranged in leaf axils near the ends of branchlets with bracteoles 2–3 mm long at the base. The sepals are 5.5–6 mm long forming a tube 2–3 mm long with two lobes, the upper lobe 2.5–3 mm long. The petals are 8–12 mm long and white, often with tinged with pinkish-mauve.

Taxonomy
Prostanthera linearis was first formally described in 1810 by Robert Brown in his book Prodromus Florae Novae Hollandiae. The specific epithet (linearis) refers to the shape of the leaves.

Distribution and habitat
Narrow-leaved mint-bush grows in eucalyptus forest, often by streams in sandy or gravelly clay soils and occurs in Queensland and from Sydney, south to Milton.

Conservation status
This mintbush is classified as of "least concern" under the Queensland Government Nature Conservation Act 1992.