Acacia baueri is a small shrub to 1 m tall, with a decumbent to spreading habit with hairy and warty branches.
It grows mainly along the coast, north from the Illawarra Region of NSW, up into Qld. Restricted to the Sydney region, occurring on the Kings Tableland in the central Blue Mountains and with sporadic occurrences on the Woronora Plateau in the Royal National Park.
Occurs in open damp heathlands and often on exposed rocky outcrops.
The phyllodes (modified leaves) are about 15 mm long to 1 mm wide, scattered or in irregular whorls, with a green-greyish colour and sometimes sparsely hairy.
Flowers produced in globular heads, to 5 mm in diameter, bright yellow, with one head produced per leaf axil. Each head can contain up to 20 very small, staminate flowers. Flowers mainly in September to June,
Pod to 30 mm long and 4 mm wide.
A. baueri is not widely grown but is a useful small shrub for coastal areas. It is reliable in a range of soils and can tolerate some inundation. It flowers best in full sun or dappled shade.
A useful plant for smaller gardens.
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 is easy from scarified seed by covering with boiling water for 24 hours and discarding any seeds still floating on the surface.
There are two subspecies recognised:
– subsp. baueri – which grows mainly along the NSW North Coast subdivision and has phyllodes in regular whorls
– subsp. aspera – restricted to the Blue Mountains area and has very pronounced warty branches. This subspecies is listed as threatened in NSW, with a category of vulnerable.
Acacia – from Greek akis, meaning a thorn or “thorny”.
baueri – in Honour of the botanical artist Ferdinand Lukas Bauer (1760-1826), who was appointed botanical draughtsman to Matthew Flinder’s expedition.