Acacia oshanesii F.Muell & Maiden (as O’Shanesii ), Proc. Linn. Soc. New South Wales ser. 2, 8: 15 (1893)
Diffuse tree or shrub to 15 m high. Bark smooth or fissured, green, grey or dark brown. Branchlets slightly angled or flattened towards apices, almost black, with yellowish pilose hairs especially on ridges. Young foliage-tips yellowish or golden-brown, densely pilose. Leaves: petiole obscure or to 0.3 (–0.5) cm long above the pulvinus, mostly with an oval or globular, dark, at base of or near lowest pair of pinnae; rachis (2.5–) 5–12 cm long, with a similar gland just below to half-way between the uppermost 1–10 pairs of pinnae; pinnae 7–20 (–27) pairs, 1–4.7 cm long, lowermost pair slightly shorter than others, downcurved; pinnules dark green above, paler beneath, 14–40 (–51) pairs, cultrate, (1–) 1.5–4 (–5) mm long, 0.5–0.8 (–1) mm wide, glabrous or ciliate, apex obtuse or acute. Inflorescences in axillary racemes, or terminal or axillary false-panicles. Heads 12–25-flowered, pale yellow or cream-coloured. Pods often curved, 3–14 cm long, 7–12 mm wide, coriaceous, brownish black or blue-black, veined, pilose along the margin when young. 2 n = 26, B.G.Briggs, on A.G.Floyd s.n. (NSW91969).
Occurs in Qld from Maryborough S to Stanmore, and in N.S.W. from Grafton S to Bellingen and from Nowra to Shoalhaven. Grows at low altitudes in high rainfall coastal areas in tall open forest and rainforest. Flowers throughout the year; fruits Aug.–Nov., occasionally June.
There is a variant with pilose hairs along the pinnule margins, and glaucous, bluish, submoniliform pods 5–8.5 cm long and 4–6.5 mm wide. The valves are conspicuously raised over the seeds. It occurs on the South Coast of N.S.W. from Nowra E to Yalwah and S to Mogo. Flowers July–Aug. Fruits Sept.–Jan. Further investigation is needed.
Acacia oshanesii is related to A. trachyphloia and occasionally hybridizes with A. baileyana .
Type of accepted name
Towards the Bunya [Mtns], [Qld], 30 Dec. 1843, L.Leichhardt ; lecto: MEL, fide J.H.Ross & P.G.Kodela (to be published in Appendix to Fl. Australia vol. 11, 2001) ; between Archer’s station and Biroa [Beerwah], [Qld], L.Leichhardt ; syn: K, MEL.
Synonymy
Acacia oshanesii is based on the following: A. decurrens var. (?) leichhardtii Benth., Fl. Austral . 2: 415 (1864); A. arundelliana F.M.Bailey, Queensland Fl . 2: 515 (1900), nom. illeg. ; Racosperma oshanesii (F.Muell. & Maiden) Pedley, Austrobaileya 2: 353 (1987). Type: as for accepted name.
Illustrations
B.A.Lebler, Wildfl. SE Queensland 2: 9 (1981); T.D.Stanley & E.M.Ross, Fl. SE Queensland 1: 376, fig. 60B1 & B2 (1983); D.A.Morrison & S.J.Davies, in G.J.Harden (ed.), Fl. New South Wales 2: 388 (1991).
Representative collections
Qld: near Palmwoods, M.D.Tindale s.n. (NSW52684); Eudlo, M.D.Tindale s.n. (NSW52683). N.S.W.: 7.6 km SE of Maclean, M.D.Tindale 2039 (NSW, Z); 19.2 km along road to Wooli from Pacific Hwy, L.Murray 19 (B, BRI, CHR, E, G, MEL, NSW, PERTH, TL, US); 40 km N of Coffs Harbour, B.Hadlow 423 (CANB, NSW).
(MDT & PGK)
The information presented here originally appeared on the WATTLE CD-ROM which was jointly published by the Australian Biological Resources Study, Canberra, and the Department of Parks and Wildlife, Perth; it was produced by CSIRO Publishing from where it is available for purchase. The WATTLE custodians are thanked for allowing us to post this information here.
