Eyre Peninsula (southern part), Northern and Southern Lofty, Murray (around Monarto) and Kangaroo Island regions. In the Mount Lofty Ranges, found growing in damp gullies along creeks and grassy hillsides in open forest, associated with <I>Eucalyptus obliqua, E. baxteri, E. leucoxylon</I> and <I>E. viminalis</I>. Soils: mainly hard alkaline red duplex, hard acid or sandy alkaline yellow duplex and grey-brown calcareous loamy earths. Rainfall 400-1 000 mm. Also Vic. and Tas.
<P>In South Australia two variants of <I>A. retinodes</I> var. <I>retinodes</I> can be recognised. The first is a form in swamps and wet sites that has broader more glaucous leaves and a smooth trunk. The second is found on drier sites, slopes above creeks and in more northerly parts of its range that has narrow green leaves and a trunk that is finally almost black with a rough bark. These have not been given any taxonomic status.
<P>The hill form has been observed and collected at Clare, Bethany, Penwortham, Marrabel, Tarnma Creek, near Ngapala along roadsides and at Brady Creek. It has not, for the time being, been mapped separately.
<P>Var. <I><b>uncifolia</b></I>. J. M. Black, <I>Trans. R. Soc. S. Aust.</I> 56:42 (1932). Phyllodes 3-6 cm long, 4-6 mm broad, usually dull-green, apex always uncinate; flower-heads 20-25-flowered. Legumes 6-11 cm long, slightly constricted. Allied to <I>A. quornensis</I>.Southern Eyre Peninsula, Southern Lofty and Kangaroo Island regions. Also Vic.