Acacia tratmaniana W.Fitzg., J. Western Australia Nat. Hist. Soc. 1: 8 (1904)
Dense, erect shrub to 3 (–4) m high. Branchlets sericeous between resin ribs. Phyllodes ascending or spreading, shallowly to moderately incurved, quadrangular in section with a broad nerve at apex of each angle, (2.5– ) 4–8 (–11) cm long, 0.5– 0.7 mm wide, slender, glabrous or sparsely appressed-puberulous, often resinous; gland obscure, 2 mm above base. Inflorescences simple, 1 or 2 per axil; heads sessile, globular to subglobular, sometimes obloid, 4– 7 mm diam., 13– 24 (–28)-flowered, golden. Flowers 4-merous; sepals united. Pods linear, constricted between seeds, to 6 cm long, 2– 3 mm wide, thinly coriaceous-crustaceous, glabrous or antrorsely strigulose. Seeds longitudinal, oblong-elliptic, 2.5– 3 mm long, mottled brown and grey; aril almost as long as seed.
Occurs from near Wongan Hills and Mukinbudin S to Pingelly and Hyden with disjunct occurrences in the Geraldton region, south-western W.A. Grows in yellow sand, lateritic gravel and loam, occasionally on salt flats, in scrub and shrubland.
A variant with short phyllodes (2.5–4 cm long) is represented by widely scattered occurrences from near Hines Hill (e.g. B.R.Maslin 1722 ), N of Hyden (c. 100 km to the SE), near Quairading and near Muntadgin. It closely resembles A. cracentis .
Often referred earlier to A. filifolia Benth. which has larger heads and longer phyllodes. Also related to A. merinthophora .
Type of accepted name
Cunderdin, W.A., Aug. 1903, W.V.Fitzgerald s.n. ; holo: PERTH; iso: K, NSW, PERTH; see B.R.Maslin & R.S.Cowan, Nuytsia 9: 392 (1994), for discussion of types.
W.A.: S of Yuna, A.M.Ashby 2153 (PERTH); Konnongorring, near Wongan Hills, E.H.Ising 43 (PERTH); 1.6 km due SE of Hines Hill, B.R.Maslin 1722 (CANB, K, MEL, PERTH); c. 1 km S of Hotham R. crossing towards Katannin , B.R.Maslin 3760 (BRI, CANB, K, MEL, NSW, PERTH).
(ARC & BRM)