Acacias of Australia

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Acacia barbinervis subsp. borealis Maslin




Near-coastal areas from near Eneabba S to Wanneroo, south-western W.A.


Branchlet apices scarcely angled. Stipules ascending to erect, straight. Phyllodes ascending to erect, straight to shallowly incurved, flat with a nerve-like upper margin but appearing angled in section when narrow due to pronounced nerves; cusp 0.5–1 mm long; midrib ±central; gland 2–12 mm above pulvinus; pulvinus 0.5–1 mm long. Flower-heads creamy yellow. Flower buds rounded-obtuse. Calyx dissected for c. 1/2 its length, with lobes narrowly triangular.


Grows mostly in sand in open heath and low Banksia woodland.


W.A.: 2.5 km SSW of Yeal Swamp, Wanneroo Forest Reserve, Y.Chadwick 2527 (PERTH); 8 km S of Eneabba, E.A.Griffin 796 (K, PERTH) and 835 (CANB, PERTH).


Resembles A. laricina by its phyllodes, which are continuous on the branches, but the petals of A. laricina are not striate. Superficially resembles the quadrangular phyllode variant of A. auronitens which has 4-nerved phyllodes, thickly crustaceous to woody pods and smaller, mottled seeds.

Perhaps warrants species status.

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 B.R.Maslin & J.Rogers