Flindersia collina, commonly known as broad-leaved leopard tree, leopard ash,[2] bastard crow's ash or leatherwood,[3] is a species of tree in the family Rutaceae and is endemic to north-eastern Australia.

The leaves are arranged in more or less opposite pairs and are usually pinnate with between three and seven elliptical to egg-shaped leaflets with the narrower end towards the base.

[2][3][4][5] Flindersia collina was first formally described in 1898 by Frederick Manson Bailey in the Queensland Agricultural Journal.

[6] Broad-leaved leopard tree grows in rainforest and dry scrub from near sea level to an altitude of 700 m (2,300 ft) and is found between the Rinyirru National Park in far northern Queensland to Toonumbar in far north-eastern New South Wales.

Flindersia collina is classified as of "least concern" under the Queensland Government Nature Conservation Act 1992.