Bossiaea vombata is a more or less glabrous, rhizome-forming shrub that typically grows to a height of up to 1.2 m (3 ft 11 in).

The branches are flattened and winged, ending in greyish-green cladodes 2–10 mm (0.079–0.394 in) wide.

[3][4][5][6] Bossiaea vombata was first formally described in 2008 by James Henderson Ross in the journal Muelleria from specimens he collected in the Wombat State Forest in 1995.

[4][7] The specific epithet (vombata) refers to the name of the state forest where this species is endemic.

[2][3] This bossiaea is classified as "endangered" under the Victorian Government Flora and Fauna Guarantee Act 1988.