Acacias of Australia

Print Fact Sheet

Acacia cerastes Maslin




Known only from Mount Gibson and Ninghan Stns, W.A.


Much-branched intricate glabrous shrub to 1.5 m high. Branchlets tortuous, terete, striate, green or brown. Phyllodes rudimentary, reduced to minute continuous terete horn-like projections to 1 mm long, usually recurved, with nerves not evident or very obscure on either side of the gland, terminated adaxially by a prominent oblique gland; mucro 0.5-1 mm long, rigid and subulate but not pungent. Inflorescences rudimentary 1-headed racemes with axes < 0.5 mm long and brown bracts persistent at base; peduncles 1–4 mm long; heads globular, 30-flowered, golden; bracteoles dark brown, slightly exserted in buds. Flowers pre-dominantly 5-merous; sepals free or partially united, linear to linear-spathulate, sometimes unequal. Pod valves (dehisced) linear, ±constricted between seeds and obviously rounded over them, to 4.5 cm long, 3-4 mm wide, thinly coriaceous. Seeds not seen.


It occurs on rocky hills.


W.A.: Mount Gibson, E of Perenjori, Nov. 1952, C.A.Gardner s.n. (MEL, PERTH); Warrdegga Hill, Ninghan Stn, c. 20 km SW of Paynes Find, S.Patrick 1111 (PERTH).


Related to A. daviesioides and superficially resembling A. restiacea.

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