Acacias of Australia

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Acacia sorophylla E.Pritz.




Known only from near Scaddan E to near Mt Ragged in the Cape Arid Natl Park, south-western W.A.


Dense, intricate, spreading, glabrous, often domed shrub 0.1–0.4 m high; terminal branches often arching downwards. Phyllodes some or all fasciculate or crowded on short or nodose branchlets, obtriangular to cuneate or oblanceolate, 1.5–3 mm long, 0.5–1 mm wide, rounded at excentrically rostriform apices, thick, drying slightly wrinkled, nerveless. Inflorescences simple, solitary at or near apex of short lateral branchlets; peduncles 2–3.5 mm long, recurved in fruit; heads globular, 3–3.5 mm diam., 7–11-flowered, golden. Flowers 5-merous; sepals free or united. Pods tightly spirally coiled, to c. 1 cm long (unexpanded); valves 2.5–3 mm wide, thinly crustaceous, blackish, slightly resinous. Seeds longitudinal, oblong, 3 mm long, dull, brown, minutely verruculose, exarillate.


Grows mostly in calcareous loam, less commonly in sand or clay, in open tree or shrub mallee and low eucalypt woodland, occasionally near margin of salt lakes.


W.A.: 20.5 km NE of Clyde Hill, M.A.Burgman 2803 & C.Layman (PERTH); 5 km N of Scaddan on Coolgardie–Esperance Hwy, B.R.Maslin 5458 (CANB, K, PERTH); 7 km NW of Mt Ragged, K.Newbey 8062 (CANB, PERTH).


Relationships unknown.

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.Rogers