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Acacia lanceolata

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Acacia lanceolata Maslin, Nuytsia 12: 363–364 (1999)

Much-branched shrub to 1 m high. Branchlets somewhat spinose, pruinose at extremities, hirsutellous to shortly pilose. Stipules evident on new shoots. Phyllodes patent to inclined, inequilateral, lanceolate, sometimes narrowly elliptic, 7–15 mm long, 1.5–4 mm wide, l:w = 2–6, acuminate, pungent, glabrous or sparsely hirsutellous; midrib central with normally 2 or 3 minor nerves parallel to it; gland 4–7 mm above pulvinus, the margin slightly angled at gland; pulvinus to c. 0.5 mm long. Inflorescences 1-headed rudimentary racemes with axes <0.5 mm long and frequently growing out at anthesis; peduncles 3–8 mm long, glabrous, recurved in fruit; basal bracts and bracteoles as in A. amblygona ; heads globular to shortly obloid, 20–23-flowered, golden. Flowers 5-merous; sepals c. 3/4 united. Pods moniliform, rather tightly coiled, to 17 mm long and 10 mm wide in contorted state, firmly chartaceous, glabrous. Seeds longitudinal, oblong-elliptic, c. 4 mm long; aril c. 2/3 length of seed.

Restricted to the Mingenew - Three Springs area, south-western W.A. Grows on low rocky or lateritic hills, in eucalypt woodland or Casuarina tall shrubland.

A member of the ‘ A. pravifolia group’ closely related to A. amblygona which has non-spinose, non-pruinose branchlets, phyllodes with the midrib near the lower margin and the gland closer to the base, and pods strongly arcuate to openly coiled.

Type of accepted name

Three Springs, W.A., Sept. 1940, W.E.Blackall 4881 ; holo: PERTH: iso: PERTH.

Representative collections

W.A.: Arrino, W.V.Fitzgerald s.n ., Sept. 1903 (NSW); 11 km N of Three Springs on The Midland Rd, B.R.Maslin 5487 (BRI, K, PERTH); 26.5 km E of Mingenew on road to Morawa, B.R.Maslin 6244 (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