In the absence of spines and legumes it may be confused with <I>A. farnesiana</I>. The latter is a large shrub rather than a tree, generally has shorter spines and the legumes are only 4-7 cm long, turgid when mature, dark brown to black and not hoary tomentose. The bract near the middle of the peduncle is also helpful in identifying <I>A. nilotica</I>.

<P>Hillman (1989) reported that the seeds of <I>A. nilotica</I> were an important seed source for 'early seed gatherers of Africa'.

<P><I>A. nilotica</I> was first collected in South Australia by Dr H. Basedow in 1919 at Cordillo Downs. It is still only in that area. It may have reached Cordillo Downs from Queensland where it is extensively naturalised.

<P><I>A. nilotica</I> is declared noxious throughout Queensland, Kleinschmidt &amp; Johnson (1977) where it is described and illustrated. Young foliage is however palatable.