Acacia truculenta Maslin, Nuytsia 12: 407 (1999)
Harsh, spreading, moderately open, glabrous shrub 0.7–2.2 m high. Bark dark grey to black. Branchlets rigid. Stipules 2–4 mm long, spinose, straight, spreading. Phyllodes sessile, patent to reclined, slightly asymmetric, lanceolate to narrowly triangular, some ovate, 7–13 mm long, 1.8–3.6 mm wide, acuminate, pungent, rigid, green to subglaucous, often tinged pale purple, 1-nerved; lateral nerves not evident. Inflorescences simple, 1 per axil; peduncles 6–8 mm long; heads globular, 23-flowered, golden; bracteoles absent. Flowers 5-merous; sepals free, narrowly linear-spathulate; petals nerveless. Pods curved, terete, to 5 cm long, 2–4 mm wide, coriaceous-crustaceous, red-brown, not striate. Seeds longitudinal, oblong-elliptic, 3–3.5 mm long, mottled; aril terminal.
Restricted to a small area from Swallow Rock to Mt Glasse (c. 100–180 km due SW of Norseman), south-western W.A. Grows in sand or loam, in low woodland or open Mallee scrub.
Type of accepted name
Frank Hann Natl Park, 68 km by road E of Lake King store towards Peak Charles, W.A., 13 Aug. 1985, B.R.Maslin 5783 ; holo: PERTH: iso: CANB, G, K, MEL, NY.
W.A.: 35 km W of Mt Glasse, Bremer Ra., K.Newbey 5574 (PERTH); 19 km NNE of Swallow Rock, Frank Hann Natl Park, K.Newbey 7223 (PERTH).