Shrub or tree, 1–5 m high, often suckering; branchlets angled towards extremities, striate with yellowish resin ribs, glabrous.
Phyllodes ascending to erect, normally linear to linear-oblanceolate, 3.5–14 cm long, 3–10(–15)mm wide, straight to shallowly curved, thin, glabrous, dull, green to grey-green or subglaucous, obtuse; midrib prominent.
Flower heads globular, 2-4 per leaf axil, cream to lemon-yellow, sometimes light golden, young buds mealy.
Flowers mostly May - Oct
Shrub or tree 3- 8 m high.
Phyllodes often pendulous, falcate to oblanceolate, much narrowed at base, usually 9–15 cm long and 10–35(–55) mm wide, midrib prominent.
Very showy bright yellow clusters of up to 80 globular flower heads.
Flowers Aug - Oct
Open shrub or small tree less than 8 m high.
Phyllodes narrowly oblanceolate, or sometimes linear or narrowly elliptic, 7–22 cm long, 3–15 mm wide, veins pinnate, obscure except for prominent midrib; gland not prominent.
Flower heads globular, about 40-flowered, golden to pale yellow.
Flowers mostly Oct - Jan
Spreading shrub or erect tree, 2 - 5 m tall.
Phyllodes whorled, needle-like, 0.5–2.5 cm long, 0.5 -1.5 mm wide.
Flowers pale yellow to yellow, in cylindrical spikes, to 2 cm long, 1 - 3 spikes per leaf axil.
Flowers usually Jul.–Dec.
Straggly to dense shrub or small spreading tree 2 - 4 m high.
Branches often down-arched, branchlets ribbed.
Phyllodes asymmetric, usually lanceolate, margins usually undulate.
Sharp thorns arise from the phyllode bases.
Yellow spherical flower-heads, one per axil.
Flowers Aug - Nov