Intertaxon relationships
species
Australian Blackwood
Acacia melanoxylon R. Br. ex Ait. f.
Achryson surinamum (Linnaeus, 1767) 
Bethelium signiferum (Newman, 1842)
Oemida gahani (Distant, 1892)
Spinimegopis cingalensis (White, 1853)