Bursaria incana, commonly known as prickly pine, box thorn, native box, native olive and mock orange,[2] is a species of flowering plant in the family Pittosporaceae and is endemic to northern Australia.

It is a tall shrub or small, sparse tree with softly-hairy foliage, heart-shaped leaves with the narrower end towards the base, leafy groups of white flowers with five spreading sepals, five spreading petals, and flattened fruit.

Bursaria incana is a tall shrub or sparse tree that typically grows to a height of 3–7 m (9.8–23.0 ft), its foliage mostly softly-hairy and the young branchlets spiny.

Flowering occurs in mid-summer, coinciding with the start of the dry season and the fruit is a flattened brown capsule 8–10 mm (0.31–0.39 in) long.

[2][3][4][5] Bursaria incana was first formally described in 1848 by John Lindley in Thomas Mitchell's Journal of an Expedition into the Interior of Tropical Australia.