Medicosma cunninghamii, commonly known as pinkheart or bonewood,[2] is a species of shrub or small tree in the family Rutaceae and is endemic to eastern Australia.

[2][3][4] Pinkheart was first formally described in 1842 by William Jackson Hooker who gave it the name Acronychia cunninghamii and published the description in the Botanical Magazine.

The type specimens had been collected by Allan Cunningham near Moreton Bay and grown from seed in Kew Gardens.

[5][6] In 1862, George Bentham and Joseph Dalton Hooker changed the name to Medicosma cunninghamii in Genera Plantarum.

Medicosma cunninghamii grows in rainforest from sea level to an altitude of 500 m (1,600 ft) and is found from Gladstone in central-eastern Queensland to the Richmond River in New South Wales.