Acacia bynoeana

Bynoe's wattle, Tiny wattle

Family: Fabaceae subfamily Mimosoideae

Acacia bynoeana is a small shrub growing to 0.5 m high, in heath and dry sclerophyll forest, in sandy soils. It has a limited distribution in NSW, found mainly south from Morisset area to the Illawarra region, west to the Blue Mountains and it is uncommon in the wild, hence it is listed as a threatened species in NSW.

The phyllodes (modified leaves) are narrowly elliptic to linear, straight to slightly curved. They have a length to 6 cm and a width to 0.3 cm.

The shrub usually blooms in the summertime between December and March, producing flowers in globular heads, to 4 mm diameter, containing up to 25 bright- golden staminate flowers. One head is produced per leaf axil.

Pods are straight to 3 cm long.

In the garden

Grows well in sandy, well-drained soils. Not much is known about how commonly it is cultivated.

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.

Other information

Wattles usually regenerate from seed banks after fire. Suckering from the base or root systems is also possible.

Acacia – from Greek akis, meaning a thorn or “thorny”.
bynoeana – named in Honour of Benjamin Bynoe (1803-1865), a Royal Navy surgeon who collected the type specimen during his voyage on the Beagle.

Listed as threatened under both NSW and Commonwealth legislation (classified as endangered at NSW level and vulnerable at Commonwealth level).


By Jeff Howes