Rounded shrub c. 30 cm high. Branches brittle, tomentose with dendritic and stellate hairs. Leaves narrowly obovate to obovate, 10–15 mm long, obtuse, fleshy, tomentose, the floral ones often clustered. Flowers solitary, slightly sunken into branch; perianth cup-shaped, densely tomentose outside. Fruiting perianth urceolate, c. 4 mm long, woody, tomentose, becoming embedded in woody branch axis; lobes membranous, erect; spines arising from beneath perianth lobes but usually coalescing to form a stout adaxial 3-pronged spine 3–6 mm long and a shorter abaxial 2-pronged spine, the fused bases of which become flattened. Fruits irregularly clustered and persistent.
Occurs in Mulga (Acacia aneura)scrub, also on calcareous hills and in sandy soil on eroded flats (fide G.M. Chippendale, Trans. Roy. Soc. S. Australia 83: 199,1960).
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