Acacias of Australia

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Acacia hypermeces A.S.George




Known only from the type and a nearby locality in the north-eastern Kimberley, W.A.


Shrub to c. 1 m diam., prostrate, with branchlets phyllodes and corolla apex openly hispid. Stipules spreading, subulate, c. 1 mm long. Phyllodes 9–12 per whorl, spreading to ascending, flattened, commonly 8–15 mm long, with straight or slightly curved mucro 0.2–0.3 mm long, with 1 adaxial and 2 abaxial grooves. Peduncles 10–26 mm long, hispid. Heads commonly 16–21-flowered. Flowers 5-merous; calyx 0.8 mm long, glabrous; calyx lobes very short, rounded-irregular, without midrib; corolla striate throughout, hispid at apex, otherwise glabrous. Pods stipitate, 3–4 cm long, glabrous; margins slightly thickened. Seeds to c. 6 per pod, longitudinal, 3–4 mm long; pleurogram closed.


Flowers June.


Growing in alluvial sand over sandstone rocks.


W.A.: mouth of Berkeley R., K.F.Kenneally 11313 (PERTH).


Related to A. repens with which it shares the prostrate habit but distinguished by the more extensive indumentum including that on the corolla apex, by the greater number of phyllodes per whorl, by the longer, less curved mucro, irregularly lobed calyx and the very long stipe of the pod. The date of collection of the type as cited in the protologue is incorrect.

FOA Reference

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