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Flora of Australia Online

Acacia sclerosperma F.Muell., S. Sci. Rec. 2(7): 150 (1882)

T: Gascoyne R., W.A., 1881, O.Jones ; holo: MEL.

Acacia spodiosperma F.Muell., Proc. Linn. Soc. New South Wales ser. 2, 3: 164 (1888). T: near Lake Austin, W.A., H.S.King ; holo: MEL.

Acacia leucosperma F.Muell. ex E.Pritz., Bot. Jahrb. Syst. 35: 302 (1904). T: near Carnarvon, W.A., L.Diels 3653 ; n.v. Synonymy following J.H.Maiden, J. & Proc. Roy. Soc. New South Wales 51: 244 (1917).

Dense commonly rounded shrub or tree mostly to c. 4 m high and c. 4 m wide. Bark smooth and light grey to branchlet extremities. Branchlets glabrous or puberulous. Phyllodes usually narrowly linear or narrowly elliptic, terete to flat, 3–14 cm long, 1–17 mm wide, l:w = 2–130, thick, smooth, often wrinkled when dry, green to glaucous, glabrous, 4-nerved in all, 1-nerved per face when flat; glands 2 or 3, not prominent. Inflorescences 2–5-headed racemes; raceme axes 3–30 mm long, glabrous or puberulous; peduncles 4–15 mm long; heads globular, subdense, 15–25-flowered, golden; buds bright green. Flowers 5-merous; sepals united into a ±truncate calyx. Pods moniliform to submoniliform, 6–12 cm long, 1–2 cm wide, woody, golden brown, glabrous. Seeds longitudinal, ±spherical, 7–10 mm long, glossy, dark brown to black; aril red, hemispherical to depressed-clavate. 

Occurs mainly in the Pilbara and Murchison districts, W.A. 

Distinguished from most other members of the ‘A. bivenosa group’ by its large, woody pods and large seeds. Two subspecies are recognised.

(A.R.Chapman, B.R.Maslin)

Phyllodes narrowly linear, 4.5–14 cm long, 1–4 mm wide, l:w = 24–130

subsp. sclerosperma

Phyllodes narrowly elliptic to narrowly oblong-elliptic, 3–6 cm long, 6–17 mm wide, l:w = 2–6, glaucous

subsp. glaucescens


Data derived from Flora of Australia Volumes 11A (2001), 11B (2001) and 12 (1998), products of ABRS, ©Commonwealth of Australia