Acacia loroloba Tindale, Contr. New South Wales Natl. Herb . 4: 137 (1970)
Shrub or tree to 9 m high. Bark smooth, red or green, later dark brown or grey. Branchlets dark brown, black or dark blue, markedly ridged when young, grey- or yellow-puberulous or glabrous. Young foliage-tips pale yellow or golden, velvety-pubescent. Leaves coriaceous, dark green; petiole above pulvinus mostly 0.5–1.6 cm long, vertically flattened, with 1 orbicular, glabrous gland near basal pinnae, rarely this gland or another gland to below basal pinnae; rachis 3.5–8 cm long, bearing prominent jugary glands with large orifices at base of each pair of pinnae, also 1–3 often contiguous, glabrous, interjugary glands between some pairs of pinnae or sometimes absent; pinnae 10–18 pairs, 1–3.5 cm long; pinnules 14–35 (–49) pairs, oblong to narrowly oblong, 1–2 (–3) mm long, 0.5–0.7 (–0.8) mm wide, glabrous or sparsely puberulous on margins and often beneath, apex rounded or subacute. Inflorescences in axillary racemes, or terminal or axillary false-panicles. Heads 19–23-flowered, pale yellow. Pods almost straight-sided, 6–14 cm long, 6–9 mm wide, coriaceous, brown, red-brown or black, sparsely puberulous.
Occurs in Qld as far N as Durong, common in north-eastern Darling Downs especially in Jandowae– Haden area, E to Toowoomba district. Grows in open forest or woodland, in undulating country, alluvial flats or black soil plains, in brown clay, red sandy loam or red volcanic soils. Flowers Dec.– Mar, sometimes also July–Aug., flowers after rains.; fruits Aug.- Nov.
Acacia loroloba is closely allied to A. mearnsii and A. parvipinnula but neither of these species are native to Qld. In A. mearnsii there are usually 16–78 pairs of pinnules in each pinna instead of 14–49 pairs as in A. loroloba .
Type of accepted name
2 miles [3.2 km] S of Kumbia, Qld, 31 Oct. 1960, M.D.Tindale s.n. ; holo: NSW; iso: A, K, L, MEL, US.
Racosperma lorolobum (Tindale) Pedley, Austrobaileya 2: 352 (1987). Type: as for accepted name.
T.D.Stanley & E.M.Ross, Fl. SE Queensland 1: 382, fig. 61C1 & C2 (1983).
Qld: 50 km WSW of Tingoora, R.Coveny 6765 & P.Hind (AD, BRI, CANB, K, L, MEL, NSW, NU, P, PERTH, TL, US); Falls Ck, 4 km NW of West Haldon, P.I.Forster 2937 & L.H.Bird (BRI, NSW); near Haden, L.Pedley 4050 (BRI, NSW); 8 miles [12.9 km] SW of Kumbia, 5 Dec. 1968, L.Pedley, B.Lebler & M.D.Tindale s.n. (K, NSW, P, PERTH, UC, US); 5 miles [8.1 km] NE of Jandowae, 5 Dec. 1968, L.Pedley, B.Lebler & M.D.Tindale s.n. (BRI, K, MEL, NSW).
(MDT & PGK)