epacantha (Maslin) Racosperma epacanthum (Maslin) Acacia epacantha is a shrub of the genus Acacia and the subgenus Pulchellae that is endemic to an area in the south west of Australia.

The dense bushy spiny shrub typically grows to a height of 0.2 to 0.5 metres (0.7 to 1.6 ft)[1] and has a spreading habit with branchlets that have axillary 1 to 2 cm (0.39 to 0.79 in) long spines that around found singly on each node.

[2] The species was first formally described by the botanist Bruce Maslin in 1979 as a part of the work Studies in the genus Acacia (Mimosaceae) - 9 Additional notes on the Series Pulchellae Benth.

It was reclassified as Racosperma epacanthum in 2003 by Leslie Pedley then transferred back to genus Acacia in 2006.

[3] It is native to an area on the west coast in the Wheatbelt region of Western Australia where it is commonly found growing in gravelly lateritic loam or clay soils.