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Acacia obliquinervia

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Acacia obliquinervia Tindale, Contr. New South Wales Natl Herb . 4: 76 (1968)

Mountain Hickory Wattle

Shrub or tree 1–15 m high. Branchlets commonly pruinose, glabrous. Phyllodes obovate to narrowly oblanceolate, sometimes narrowly elliptic, 5–17 cm long, 1.5–5 cm wide, narrowed and often recurved near base, obtuse, grey-green to glaucescent, glabrous, with prominent midrib situated towards the adaxial margin, penninerved; gland 0–12 mm above pulvinus. Inflorescences racemose, sometimes paniculate; raceme axes flexuose, 2–10 cm long, glabrous; peduncles 1.5–5 mm long, stout, normally glabrous; heads globular, 20–35-flowered, bright golden or lemon yellow; buds sometimes obloid. Flowers 5-merous; sepals united for up to 4/5 their length. Pods stipitate, slightly raised over seeds along midline, 4–15 cm long, 12–25 mm wide, chartaceous to thinly coriaceous, slightly pruinose, glabrous. Seeds oblique, 5–6 mm long, oblong-elliptic to ovate, dull to slightly shiny, black; funicle thickly filiform, dark red-brown to black (dry), arillate.

Occurs from Taloobie, 40 km N of Rylestone, N.S.W., S through A.C.T. to near Healesville, Vic., with a western outlier in the Grampians. Common in montane forests and woodlands between 500 m and 1700 m alt.

Formerly confused with A. falciformis which is distinguished by its creamy yellow flower-heads, normally golden-puberulous peduncles and raceme axes, and phyllodes with a fine oblique nerve from the gland to the midrib. Short phyllode forms may resemble A. caerulescens or A. penninervis , both of which also possess an oblique nerve from the gland to the midrib. Sometimes superficially resembling A. pycnantha which is distinguished by its more numerous 40–80-flowered heads, narrower pods 5–7 mm wide, and green phyllodes with a central midrib.

Type of accepted name

Mt St Leonard, 6 miles [9.6 km] N of Healesville, Vic., 26 Oct. 1964, E.F.Constable 5278 ; holo: NSW; iso: A n.v ., BRI n.v ., K n.v ., L n.v ., MEL, PERTH, US n.v.

Synonymy

? Acacia penninervis var. glauca R.T.Baker, Proc. Linn. Soc. New South Wales 21: 441 (1896). Type: locality unknown, Jan. 1893, J.Dawson ; ?type: NSW167433 (specimen in young bud, label states that fruits were present but none are on the sheet); Taloobie, near Bylong Ck, 25 miles [40 km] N of Rylestone, N.S.W., Oct.1893, R.T.Baker ; ?type: NSW101421 (a fruiting specimen perhaps collected by Dawson and erroneously attributed to Baker). L.Pedley, Austrobaileya 1: 267 (1978), regarded this variety conspecific with A. falciformis .

? Acacia pycnantha var. latissima Hochr., Candollea 2: 375 (1925). Type: ‘Mts Blackspurs’, near Healesville, Vic., 26 Feb. 1905, B.P.G.Hochreutiner 3013 ; n.v.

[ Acacia falciformis auct. non DC.: H.B.Williamson, in A.J.Ewart, Fl. Victoria 1931: 586 (1931)]

[ Acacia penninervis auct. non DC.: A.J.Ewart, Handb. Forest Trees t. 65, fig. B (1925), fide A.B.Court, in J.H.Willis, Handb. Pl. Victoria 2: 224 (1973)]

Illustrations

L.F.Costermans, Native Trees & Shrubs SE Australia 318 (1981); M.Simmons, Acacias Australia 2: 187 (1988); T.Tame, Acacias SE Australia 132, fig. 139, pls 139 & 139a (1992).

Representative collections

N.S.W.: c. 27 km NE of Rules Point on Fiery Ridge, T. & J.Whaite 2892 (PERTH). A.C.T.: Mt Franklin, 27 Nov. 1949, E.Gauba (MEL, PERTH). Vic.: Victoria Ra., Grampians, A.C.Beauglehole 9870 (MEL); Golden Gully Trail, East Gippsland, A.C.Beauglehole 34184 (MEL, NSW, PERTH).

(BRM)

WATTLE Acacias of Australia CD-ROM graphic

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.

Page last updated: Tuesday 11 September 2018