Acacia trulliformis R.S.Cowan & Maslin, Nuytsia 12: 446–447 (1999)
Spreading shrub 1–3 m high. Branchlets angled, resinous, appressed-puberulous, the hairs golden ageing white. Phyllodes asymmetric, elliptic to oblong-elliptic, 1.5–4.5 cm long, 8–16 mm wide, obtuse-mucronate, resinous, appressed-puberulous when young on margins and main nerves, the hairs golden but often ageing white, sometimes ageing glabrous, with 2–4 main longitudinal nerves and openly reticulate inbetween. Inflorescences (1- or) 2-headed racemes; raceme axes 2–8 mm long, resinous, sparsely to densely golden appressed-puberulous; peduncles 8–13 mm long, resinous, with indumentum as on raceme axes; heads globular to obloid, 5–6 mm diam., 62–75-flowered, golden; bracteoles trowel-shaped. Flowers 5-merous; sepals 1/2–3/4-united. Pods narrowly oblong, straight to sigmoidally curved, to 3.5 cm long, 5–6 mm wide, coriaceous, short-pilose with glistening white hairs, resinous. Seeds longitudinal, oblong-oval, 3.5–4 mm long, subglossy, dark brown; aril subapical, white.
Restricted to SE of Ongerup with an early collection from ‘Gordon Ra.’ (probably near Gordon Inlet), south-western W.A. Grows in loamy sand on creek flats in Swamp Yate woodland.
The G.Maxwell specimen is labelled ‘Acacia ixiophylla Benth. var. latifolia’ and was cited as such by G.Bentham, Fl. Austral. 2: 387 (1864), but the variety was never published.
A member of the ‘ A. flavipila group’. It seems close to A. loxophylla which is most readily distinguished by its smaller phyllodes with resin masses in their axils and shorter peduncles.
Type of accepted name
SE of Ongerup [precise locality withheld for conservation reasons], W.A., 12 Sept. 1974, K.Newbey 4360 ; holo: PERTH.
[ Acacia ixiophylla auct. non Benth.: G.Bentham, Fl. Austral. 2: 387 (1864), as to G.Maxwell , Gordon Ra.]
W.A.: Gordon Ra., G.Maxwell s.n. (K); SSE of Ongerup, K.Newbey 11825 (CANB, K, MEL, PERTH).
(RSC & BRM)