Acacias of Australia

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Acacia grisea S.Moore




Restricted from Kukerin S to Kojonup and Broomehill, south-western W.A.


Subshrub to 0.4 m high. Branchlets puberulous to hirsutellous. Pinnae 2 pairs, 2-4 mm long (proximal pinnae), 5-10 mm long (distal pinnae); petiole 0.5-1 mm long; rachis 1-3 mm long; pinnules 2 or 3 pairs (proximal pinnae), 4-7 pairs (distal pinnae), ±oblong, 2-4 mm long, 1-2 mm wide, obtuse, slightly thickened, grey-green, finely puberulous with straight to incurved and ±antrorse hairs; gland on rachis at base of pinnae, sessile. Inflorescences simple, 1 per axil; peduncles 10-20 mm long, glabrous; heads globular, 16-26-flowered, seemingly golden. Flowers 5‑merous; sepals 5/6-united; petals 1-nerved. Pods 2-4 cm long, 5 mm wide, pilose. Seeds transverse to oblique, oblong to elliptic, 2.5-3 mm long.


Grows in gravelly loam.


W.A.: c. 13 km SE of Broomehill towards Pallinup, B.R.Maslin 646 (AD, B, BH, BRI, CANB, K, MEL, NSW, PERTH).


Closely related to A. browniana, but distinguished by its flat, grey-green, concolorous pinnules which are finely puberulous on both surfaces. Acacia grisea occurs further inland than does A. browniana.

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