[2] Acacia stenophylla varies in characteristic and size from a rounded, multi-stemmed shrub to a spreading tree.

[3] The flower heads are creamy-white to pale yellow in colour, spherical and 6–9 mm (0.2–0.4 in) in diameter.

[3] The pods are moniliform, up to 26 cm (10 in) long, 8–12 mm (0.3–0.5 in) wide, woody-leathery textured, smooth except micro-puberulous between seeds.

[5][9] Seed pods turn woody as they mature from October to December and produce approximately 6–12 viable seeds/g.

[2] Common names used in Australia include Balkura, Belalie, black wattle, Dalby myall, Dalby wattle, Dunthy, Eumong, Gooralee, Gurley, ironwood, Munumula, native willow, river cooba, and river myall.

[13] In altitude, it mainly occurs between 50 and 325 m[13] ASL with a range from near sea level to 625 m.[13] Acacia stenophylla is most commonly found in a warm arid climatic zone.

[13] A. stenophylla tends to grow to a larger size in semiarid climates, which exist in New South Wales and Queensland.

[6] A. stenophylla is subject to 1–20 heavy frosts per year,[13] and withstands a variable rainfall frequency.

[13] It is cultivated by plant nurseries, and used in modernist gardens and in public landscapes in the Southwestern United States and California.