Acacia robusta
Leaves with 2-7 pairs of pinnae, each bearing 10-27 pairs of leaflets, 2.5-7.5 mm wide; leaflets are ranked apart (with a space between them), dark green, slightly paler below with the midrib conspicuous. The petiole and the rachis is 45-65 mm long, hairless and grooved along the top.
Photo by A.D. Botha courtesy Ecoport
(source URL: http://www.ecoport.org)