Acacia echinula, commonly known as hedgehog wattle,[2] is a species of flowering plant in the family Fabaceae and is endemic to New South Wales. It is an intricate shrub with hairy branchlets, rather crowded phyllodes, spherical heads of mid-golden yellow flowers and curved, thinly leathery to crusty pods.
Acacia echinula is an intricate shrub that typically grows to a height of up to 2m (7ft), and has branchlets covered with fine hairs. Its phyllodes are rather crowded, more or less sessileterete phyllodes, 5–14mm (0.20–0.55in) long, 1.0–1.5mm (0.039–0.059in) wide, rigid and sharply pointed. The flowers are borne in a spherical head in axils on a peduncle5–15mm (0.20–0.59in) long, the heads 5–10mm (0.20–0.39in) in diameter with 27 to 42 mid-golden yellow flowers. Flowering occurs from July to September, and the pods are up to 40mm (1.6in) long, 4–5mm (0.16–0.20in) wide and thinly leathery to crusty and blackish. The seeds are oblong, 4mm (0.16in) long and dark brown.[2][3][4][5]
Hedgehog wattle grows in sand over sandstone, in forest or heath, mainly between Nowra and Lake Macquarie with an outlier near Grafton in New South Wales.[2][3]
1 2 3 Kodela, Phillip G. "Acacia echinula". Royal Botanic Garden, Sydney. Retrieved 8 November 2025.
1 2 3 Maslin, Bruce R. Orchard, Anthony E. (ed.). "Acacia echinula". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 8 November 2025.
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