Prostanthera schultzii

Prostanthera schultzii, a species of flowering plant in the Lamiaceae family, is endemic to the Northern Territory. It grows as a shrub reaching 0.5–1.5 m tall with stiff, spine-like branches and heart-shaped to round or paddle-shaped leaves measuring 4–12 mm long on short petioles. The flowers are sessile, arranged in groups at branch ends, with sepals forming a tube 3–3.5 mm long. The petals are white with purple spots and yellow patches on the lower lip, forming a tube about 7 mm long. Flowering occurs in April, July, and September–November.

Prostanthera schultzii was first described by Ralph Tate in 1896 based on Ferdinand von Mueller's unpublished description, published in the Report on the work of the Horn Scientific Expedition to Central Australia. Type specimens were collected from Mount Sonder's higher slopes. In 1976, John Carrick renamed it Wrixonia schultzii, but Trevor Wilson, Murray Henwood, and Barry Conn reverted it to P. schultzii in 2012.

This mintbush is found in sheltered upper slopes of the Chewings Range within West MacDonnell National Park. It is classified as "vulnerable" under both the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the Northern Territory Government's Territory Parks and Wildlife Conservation Act 1976.