WATTLE

Acacias of Australia

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Acacia awestoniana R.S.Cowan & Maslin

Family

Fabaceae

Distribution

Endemic in Stirling Range Natl Park, c. 80 km N of Albany in south-western W.A.

Description

Shrub 2.5–3 m high, resinous, viscid. Branchlets glabrous. Stipules persistent, obliquely ovate, 2–4 mm long. Phyllodes patent, obliquely widely elliptic to elliptic, 1.5–3 cm long, 11–22 mm wide, undulate, obtuse to truncate and cuspidate, coriaceous, glabrous, with 3–6 main longitudinal nerves and sparingly reticulate in between; gland ±basal. Inflorescences 1–3-headed racemes; raceme axes 2–7 mm long, puberulous; peduncles 12–20 mm long, glabrous; basal bract 1.5–2.5 mm long; heads globular, 5–6 mm diam., 54–60-flowered, golden; bracteoles peltate, acuminate. Flowers 5-merous; sepals 3/4-united. Pods narrowly oblong, straight, to 2.2 cm long, 3–5 mm wide, villous. Seeds oblique (?), oblong-elliptic, ±4 mm long, glossy, brown; aril terminal.

Habitat

Grows in Wandoo (Eucalyptus wandoo) woodland.

Specimens

W.A.: Stirling Ra. Natl Park [precise localities withheld for conservation reasons], B.R.Maslin 3745 (PERTH), loc. id., H.Steedman (PERTH00193909); loc. id., A.S.Weston 9130 (MEL, NSW).

Notes

Most closely related to A. dictyoneura which has smaller, mucronulate phyllodes, smaller stipules and bracts, shorter peduncles, ovate to lanceolate bracteoles and free sepals. Both species are in cultivation in Tas.

Conservation

Gazetted a rare species in W.A.

FOA Reference

Data derived from Flora of Australia Volumes 11A (2001), 11B (2001) and 12 (1998), products of ABRS, ©Commonwealth of Australia

Author

Minor edits by J.Reid

R.S.Cowan, B.R.Maslin