Acacia aphylla, or the Leafless Rock Wattle features bright green, rigid branchlets that are ribbed.
They are smooth, glaucous, glabrous and coarsely pungent.
Unlike most Acacia, the phyllodes are absent for this species.
The thickened blue-green wiry stems have the ability to photosynthesise like leaves, so giving the plant an evolutionary adaptation that greatly reduces the total surface area for water loss through transpiration.
Acacia aphylla produces yellow spherical flowers in springtime.