Prostanthera eckersleyana, commonly known as crinkly mintbush, is a species of flowering plant in the family Lamiaceae and is endemic to the south-west of Western Australia. It is an erect or spreading shrub with sticky, hairy branchlets, egg-shaped to elliptical leaves and blue, mauve to purple or violet flowers with maroon spots inside the petal tube. Description Prostanthera eckersleyana is an erect or spreading shrub that typically grows to a height of and has cylindrical, sticky, hairy branchlets. The leaves are mid-green, egg-shaped to elliptical, aromatic and sticky, long and wide on a petiole long. The flowers are arranged singly in four to ten leaf axils near the ends of branchlets, each flower on a hairy pedicel long. The sepals are green with a mauve to purple tinge and form a tube long with two lobes, the lower lobe long and the upper lobe long. The petals are blue, mauve to purple or violet with maroon spots inside the tube, and fused to form a tube long with crinkled edges. The lower lip has three lobes, the centre lobe broadly spatula-shaped, long and wide, the side lobes long and wide. The upper lip is long and wide with a notch deep. Flowering occurs from May to July or December. Taxonomy Prostanthera eckersleyana was first formally described in 1876 by Ferdinand von Mueller in his book Fragmenta phytographiae Australiae. The specific epithet (eckersleyana) honours Florence Eckersley. Distribution and habitat This mintbush grows on plains, often with Melaleuca and Acacia species and occurs in the Avon Wheatbelt, Coolgardie and Yalgoo biographic regions of Western Australia. Conservation status Prostanthera eckersleyana is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. References eckersleyana Flora of Western Australia Lamiales of Australia Taxa named by Ferdinand von Mueller Plants described in 1876