Acacias of Australia

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Acacia resinosa R.S.Cowan & Maslin




Widespread and discontinuous, occurring near Gutha, Wubin–Wongan Hills, near Koolyanobbing, Southern Cross and Karonie and also scattered from near Kulin eastwards to near Ponier Rock, W.A.


Aromatic, rounded shrub 1–3 m high. Branchlets glabrous, resinous, with resin encrusting entire surface or confined to ribs. Phyllodes ascending to erect, often ±slender, straight to shallowly curved, terete to subterete, mostly 3–8 cm long, 0.5–1 mm diam., innocuous with a straight or shortly curved to uncinate tip, glabrous, with ±16 plane close nerves. Inflorescences simple; peduncles (2–) 4–8 (–9) mm long, glabrous or sometimes appressed-puberulous, resinous; heads globular, 3.5-4 mm diam., 18–37-flowered, golden, resinous. Flowers 5‑merous; sepals united. Pods linear, slightly constricted between and slightly raised over seeds, to 7 cm long, 2–3.5 mm wide, firmly chartaceous to thinly coriaceous, glabrous, resinous. Seeds longitudinal, elliptic, c. 3.2 mm long, glossy, mottled; aril white.


Grows in clay, loam and sand on flats, in low open woodland, open scrub, tall shrubland, tall open shrubland and open heath.


W.A.: 7 km SW of Ponier Rock, c. 72 km S of Balladonia Motel, Eyre Hwy, K.Newbey 7356 (PERTH); Wongan Hills Experimental Farm, Craig Rd, C.M.Parker 210 (AD, CANB, PERTH); 14 km NE of Wubin on road to Mount Magnet, P.G.Wilson 6476 (AD, CANB, K, MEL, PERTH).


Affinities uncertain but perhaps related to Acacia sp. Goodlands (B.R.Maslin 7761). Superficially similar to A. coolgardiensis which is recognised by its ±sessile heads, terete pods and non-mottled seeds, and A. incognita.

FOA Reference

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


Minor edits by B.R.Maslin & J.Reid