Prostanthera teretifolia, commonly known as turpentine bush, is a species of flowering plant in the family Lamiaceae and is endemic to a restricted area of New South Wales. It is an erect to spreading, aromatic shrub with more or less cylindrical leaves and bluish-purple flowers.
Prostanthera teretifolia is an erect to spreading, aromatic shrub that typically grows to a height of with branches that are densely hairy and glandular. The leaves are greyish green, more or less cylindrical, long and wide, sometimes with two or three lobes, on a petiole long. The flowers are arranged in groups on the ends of leafy branchlets, the sepals about long forming a tube wide with two lobes, the upper lobe long. The petals are bluish-purple, long forming a tube long. Flowering usually occurs from August to December.[1] [2]
Prostanthera teretifolia was first formally described in 1908 by Joseph Maiden and Ernst Betche in the Proceedings of the Linnean Society of New South Wales.[3] [4]
Turpentine bush grows in open and exposed areas amongst granite outcrops near Torrington on the Northern Tablelands of New South Wales.