Acacia evenulosa Maslin, Nuytsia 12: 348–349 (1999)
Dense, spreading shrub 0.5–1.7 m high. Branchlets compressed at first, ribbed, commonly minutely appressed-puberulous often towards apices and in phyllode-axils. Stipules persistent, 1.5–3 mm long. Phyllodes on raised stem-projections, erect, narrowly oblong to linear, straight to shallowly incurved, often biconvex, 1.5–4 cm long, 2–3.5 mm wide, narrowed at base, obtuse, inconspicuously mucronulate, coriaceous, glabrous; midrib not prominent; lateral nerves absent; gland inconspicuous, 1–4 mm above base. Inflorescences normally rudimentary, 2-headed racemes with axes to 0.5 mm long and which sometimes grow out at anthesis; peduncles mostly 4–10 mm long, glabrous; heads globular, 4–4.5 mm diam., 15–22-flowered, golden. Flowers 5-merous; sepals free. Pods commonly circinnate to semi-circinnate, to 3 cm long, 4–4.5 mm wide, thinly coriaceous-crustaceous, glabrous. Seeds longitudinal, broadly elliptic, 2.5 mm long, glossy, grey-brown, becoming dark brown; aril subterminal, linear-clavate, 3/4 to as long as seed, creamy white.
Occurs from Mt Holland (c. 85 km NE of Hyden) and Lake King (c. 105 km SE of Hyden), E to near Balladonia (E of Norseman) and near Clyde Hill (Clyde Hill is c. 110 km NE of Esperance), W.A.; most common in the Peak Charles- Salmon Gums- Grass Patch area (N of Esperance). Grows on flat or gently undulating plains, in red-brown clay to sandy loam, in low eucalypt woodland or scrub mallee or low Casuarina scrub.
Most closely related to the more northerly A. saxatilis which has broader, pruinose phyllodes, more numerous flowers per head and the pod is curved rather than circinnate. Also allied to A. blaxellii .
Type of accepted name
1 km N of Salmon Gums on Coolgardie- Esperance Hwy, W.A., 25 Sept. 1983, B.R.Maslin 5449 ; holo: PERTH; iso: CANB, K, MEL, NY.
Representative collections
W.A.: 30.5 km N of Mt Ney, M.A.Burgman 1281 & S.McNee (PERTH); 14 km S of Mt Holland, B.R.Maslin 3949 (PERTH); 24 km SSW of Mt Malcolm, Fraser Ra., K.Newbey 7637 (PERTH); 37 km W of Balladonia on the Eyre Hwy, M.H.Simmons 1163 (PERTH).
(BRM)