Flora of Australia Online
Acacia ausfeldii Regel, Index Sem. Hort. Petrop. 106 (1867)
T: cultivated at hort. bot. Petropolitano from seed collected by J.G.Ausfeld from near Bendigo, Vic.; syn: LE n.v.
Illustration: L.F.Costermans, Native Trees & Shrubs SE Australia 311 (1981); T.Tame, Acacias SE Australia 107, fig. 105, pl. 105 (1992).
Somewhat viscid shrub or tree 2–4 m high. Branchlets prominently resin-ribbed, glabrous. Phyllodes commonly patent, linear-oblong to narrowly elliptic, straight to shallowly incurved, 2–6 cm long, 2–6 mm wide, narrowed at base, obtuse to subacute, with mucro normally excentric, rather obviously resinous-punctate, glabrous, 1-nerved per face; lateral nerves obscure or absent; gland 0–3 mm above pulvinus. Inflorescences usually simple and 2 per axil; peduncles often patent, 4–9 mm long, somewhat stout, usually pubescent-tomentose and bracteate at base; heads globular to slightly obloid, 30–45-flowered, golden. Flowers 5-merous; sepals united. Pods linear, raised over seeds, 3–9 cm long, 2.5–3 mm wide, firmly chartaceous, glabrous. Seeds longitudinal, oblong, 3–4 mm long, shiny, dark brown; aril terminal. Fig. 85A–C.
Disjunct in south-eastern Australia, occurring in the Dubbo–Cassilis–Mudgee area, N.S.W., and the Inglewood–Nagambie area N to Torrumbarry, Vic. In N.S.W. it grows in alluvial gullies, on flats or low hills, while in Vic. it grows in dry forest and mallee communities. Map 505.
N.S.W.: 22 km from Mudgee towards Cassilis, I.B.Armitage 990 (PERTH). Vic.: Bendigo Whipstick, c. 10 km due NNW of Bendigo township, B.R.Maslin 5845 (MEL, PERTH); near Costerfield on the Nagambie–Heathcote road, I.B.Muir 2160 (MEL).
In general, the N.S.W. plants differ from those in Vic. in having slightly broader phyllodes with a few, obscure, impressed lateral nerves (laterals normally absent in Vic.).
A member of the A. verniciflua complex and especially similar to some forms of A. leprosa . Acacia ausfeldii is recognised by its glabrous, resin-ribbed branchlets, normally tomentose-pubescent peduncles (hairs dense, normally spreading, subcrisped and somewhat matted), generally more floriferous heads and slightly narrower pods.
Putative hybrids between A. ausfeldii and A. paradoxa (syn. A. armata ) in the Bendigo–Heathcote district, Vic., are noted by A.B.Court, in J.H.Willis, Handb. Pl. Victoria 2: 216 (1973).
Data derived from Flora of Australia Volumes 11A (2001), 11B (2001) and 12 (1998), products of ABRS, ©Commonwealth of Australia