Acacia kimberleyensis W.Fitzg.

Shrub 1–1.5 m tall, glabrous. Branchlets slender, subangular, finely ribbed, resinous at least when young. Phyllodes narrowly linear, flat or ±quadrangular, 8–16 cm long, 0.8–1.8 mm wide, not rigid, with 3–7 subdistant somewhat raised nerves per face when flat; central nerve slightly more pronounced. Inflorescences simple, mostly 2 per axil; peduncles 5–10 mm long; spikes 2–3 cm long, narrow. Flowers 5-merous; sepals free, linear-spathulate. Pods narrowly linear, 7–10 cm long, c. 2 mm wide, thinly crustaceous, finely longitudinally nerved, dehiscing elastically from apex (see protologue); margins very narrowly winged, with wing c. 1 mm wide. Seeds (see protologue) longitudinally oblique, narrowly oblong, c. 6 mm long, shiny, greenish black; funicle/aril conical, equalling seed length.

Judging from W.V. Fitzgerald's unpublished diary the type was collected in an area dominated by Eucalyptus miniata woodland over spinifex and the rocks were sandstone nerved with quartzite.