Acacia hispidula

Little Harsh Acacia, Rough-leaved Acacia, Rough Hairy-wattle.

Family: Fabaceae subfamily Mimosoideae

Acacia hispidula is an erect or spreading shrub to 2 m tall.

It has a disjunct distribution; in the south of NSW, it is found in coastal localities north from Nowra and is especially common in the Sydney region; then it is found further north from Coffs Harbour and inland as far as Brisbane in QLD.

Its habitat is chiefly dry sclerophyll woodland and forest communities.

The phyllodes are to 3 cm long and to 1 cm wide with a curved elliptic shape. They have a hispid / rough to sometimes smooth texture (depending on the presence of tubercle-based hairs).

Flowers are produced in globular heads, to 8 mm in diameter, with each head having up to 20 flowers. Heads are produced in solitude in leaf axils, yellow to almost white in colour, January to April and often through the year.

The seed pods have an oblong to narrowly oblong shape but can be elliptic when containing a single seed. The pods are up to 5 cm long and to about 1 cm wide.

In the garden

A hardy shrub. Fairly fast growing and frost tolerant. Unusual phyllodes would make it an ideal rockery plant.

Acacias can suffer from a number of pests, including borers, scale, galls and leaf miners. Growing plants suitable to your local environment minimises these occurring.

Propagation

Propagation is easy from scarified seed by covering with boiling water for 24 hours and discarding any seeds still floating on the surface.

Other information

May be confused with Acacia aspera which has longer and narrower phyllodes.

Most wattles regenerate from seed after fire.

Acacia – from Greek akis, meaning a thorn or “thorny”.
hispidula – from Latin and is in reference to the hairy nature of the branchlets and phyllode margins having short hairs or tubercles.

Not considered to be at risk in the wild.

https://en.wikipedia.org/wiki/Acacia_hispidula
http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Acacia~hispidula

By Jeff Howes