Acacias of Australia

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Acacia arcuatilis R.S.Cowan & Maslin




Occurs from near Bindi Bindi S to near Ongerup, E to Hyden, W.A.


Shrub commonly 0.4-0.8 m high, low, spreading. Branchlets sericeous between red-brown or yellow-brown resin-ribs at extremities. Phyllodes shallowly to strongly incurved (sometimes into a complete circle), terete, (2.5-) 3-6 (-7) cm long, 0.5-1.3 mm diam., grey-green to subglaucous, resinous; nerves 8, broad, ±flat-topped, not or scarcely raised, with ±appressed-hairs in the shallow narrow furrows between. Inflorescences simple, normally 2 per axil; heads ±sessile and globular, 4-5 mm diam., 10-22-flowered, golden. Flowers 4‑merous; sepals 2/3-3/4-united. Pods linear, slightly raised over and slightly constricted between seeds, straight to shallowly curved, to 6 cm long, 1.5-2 mm wide, thinly coriaceous, minutely appressed-puberulous on lateral faces, resinous; margins wide. Seeds longitudinal, elliptic, 2-2.5 mm long, glossy, mottled; aril conical, ±as long as seed.


Grows in sand, sandy loam and loam, in mallee open scrub and occasionally in open heath.


W.A.: 7.5 km S of Great Northern Hwy at Bindi Bindi, R.Cumming 3593 (PERTH); 7 km S of Kulin towards Kukerin, B.R.Maslin 4376 (PERTH); c. 2 km due W of Camel Peaks, B.R.Maslin 5770 (BRI, G, PERTH); 20 km NW of Ongerup, N.Stevens KRN9492-1 (MELU, PERTH).


Very closely related to A. cracentis which is distinguished by its straighter, more slender phyllodes with normally single heads within their axils. Also related to A. aprica.

FOA Reference

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


Minor edits by J.Reid

R.S.Cowan, B.R.Maslin