Australian Native Plants

  Acacia mearnsii (Black Wattle)

Acacia mearnsii photo
Acacia mearnsii - Black wattle flowers at Polipoli, Maui, Hawaii

Photograph by Forest & Kim Starr. Some rights reserved.    (view image details)

Acacia mearnsii photo
Acacia mearnsii (seedpods). Location: Maui, Waiale Gulch

Photograph by Forest & Kim Starr. Some rights reserved.    (view image details)


distribution map showing range of Acacia mearnsii in Australia

Map is from The Atlas of Living Australia web site, licensed under Creative Commons Attribution 3.0 Australia License

Common Name
Black Wattle

Black Wattle is a spreading shrub or erect tree growing about 8 m to 10 m or more. The bark is grey, becoming black and fissured with age. New growth foliage has yellow or greenish yellow tips. The dark green leaves are bipinnate (fern-like). Black Wattle flowers in autumns and winter between October and December. The flowers are cream or pale yellow, fragrant and occur in spherical flower heads. The seed pods are straight to curved, growing 3 cm to 10 cm long and about 5 mm to 8 mm wide.

In its natural range it grows in woodland, forests. In areas where it has been introduced it also grows in disturbed areas, grasslands, along waterways and in urban areas.

Black Wattle is native to south-eastern Australia and Tasmania. It has been introduced to North America, South America, Asia, Europe, Pacific and Indian Ocean islands, Africa, and New Zealand.

Growth Characteristics
Height: 8m - 15m
Spread: 6m - 10m

scarified seed

Wildlife Interest
attracts seed-eating and insect-eating birds

Common Name:Black Wattle

Relatives in same Genus
  Acacia acanthoclada
  Acacia acinacea
  Acacia acradenia
  Acacia aculeatissima
  Acacia alata
  Acacia amblygona
  Acacia amoena
  Acacia aneura
  Acacia aulacocarpa
  Acacia auriculiformis
  Acacia baileyana
  Acacia beckleri
  Acacia boormanii
  Acacia brachybotrya
  Acacia brachystachya
  Acacia buxifolia
  Acacia caesiella
  Acacia calamifolia
  Acacia cardiophylla
  Acacia chrysocephala
  Acacia cognata
  see A-Z list for more ...