Acacia denticulosa F.Muell.
WATTLE
Acacias of Australia
Common Name
Sandpaper Wattle
Family
Fabaceae
Distribution
Scattered populations from E of Mt Churchman S to near Nungarin and W at Wongan Hills, W.A.
Description
Shrub 1–4 m high, open, spindly. Branchlets resinous at first, coarsely verrucose-scabrous, (tips of hairs soon eroded leaving tubercle-bases). Phyllodes spreading, inequilaterally widely elliptic to ovate, 5–9 cm long, 3.5–7.5 cm wide, strongly undulate and with irregularly denticulate margins, acute, mucronate, thickly coriaceous, dark green, prominently 3- or 4-nerved with a prominent coarse reticulum in between; venation ±verrucose-scabrous. Inflorescences simple; peduncles 3–7 mm long, scabrous, resinous; spikes 25–80 mm long, 6–8 mm diam., dense, golden. Flowers 4-merous; sepals free. Pods linear, strongly raised over seeds, straight to slightly curved, to 7.5 cm long, 3–4.5 mm wide, glabrous. Seeds longitudinal, elliptic to broadly elliptic, 3.5–4 mm long, glossy, brown-black; aril terminal.
Habitat
Grows in sand, loam, silt and clay, on and around granite hills and outcrops, rarely on sandplains.
Specimens
W.A.: Wongan Hills area [precise locality withheld for conservation reasons], B.R.Maslin 4544 (CANB, K, PERTH); Barbalin, K.Newbey 2875 (PERTH); 40 km E of Mt Churchman, Oct. 1983, R.Paynter (PERTH); near Nungarin, 1 Sept. 1919, E.Simpson (PERTH).
Notes
Affinities unknown.
Conservation
Gazetted a rare species in W.A.
FOA Reference
Data derived from Flora of Australia Volumes 11A (2001), 11B (2001) and 12 (1998), products of ABRS, ©Commonwealth of Australia
Author
B.R.Maslin, R.S.Cowan
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