Acacia paradoxa

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Kangaroo Thorn
Acacia armata C.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Clade: Mimosoideae
Genus: Acacia
A. paradoxa
Binomial name
Acacia paradoxa
Acacia paradoxaDistMap672.png
Occurrence data from AVH

Acacia armata R.Br.

Acacia paradoxa habit Acacia paradoxa kz3.jpg
Acacia paradoxa habit
Acacia paradoxa foliage, stipules and flowers Acacia paradoxa (Hedge Wattle) (24631313579).jpg
Acacia paradoxa foliage, stipules and flowers
Kangaroo Thorn flower Kangaroo Thorn flower (6257402372).jpg
Kangaroo Thorn flower

Acacia paradoxa [1] is a plant in the family Fabaceae. Its common names include kangaroo acacia, [2] kangaroo thorn, prickly wattle, hedge wattle [3] and paradox acacia.



The large shrub or tree up to 2 to 4 metres (7 to 13 ft) tall [4] and has a similar width, [3] it has ribbed branchlets that are often arched downward. It is dense with foliage; the leaves are actually enlarged petioles known as phyllodes. They are crinkly and the new ones are covered in hairs. The erect phyllodes are asymettric and have a lanceolate shape and are around 30 millimetres (1.18 in) in length and 7 mm (0.276 in) wide. [4] The bush is also full of long spines. It usually flowers between August and November [3] producing an axillary flower-spike with small, bright yellow spherical flower heads and the fruits are brown pods 4 to 7 centimetres (1.6 to 2.8 in) long. The hard black seeds within have an oblong shape and are about 6 mm (0.236 in) in length and half as wide. [4]

The spiny stipules that grow at the base of the phyllodes deter livestock from feeding on or too close to the plant.


The species was first formally described by the botanist Augustin Pyramus de Candolle in 1813 as part of the work Catalogus Plantarum Horti Botanici Monspeliensis. [2] The species name is from the Greek words para which means near and doxa meaning glory. This probably refers the unattractive and thorny shrub being quite showy when it is in bloom. [4]

Many synonyms are known for the plant including; Acacia ornithophora, Acacia undulata, Mimosa paradoxa, Racosperma paradoxum, Acacia armata and Acacia hybrida. [2]


Kangaroo thorn is widely spread across Australia, regenerating from seed after disturbances, such as bush fire. Small birds, including wrens, use this plant as shelter and dwelling, while it is relied upon as a food source for moths, butterflies and other insects, birds also feed on its seeds.

It is endemic to south eastern parts of South Australia, much of Victoria, eastern New South Wales and south eastern parts of Queensland. [2] It has become naturalised in parts of Western Australia and Tasmania. [4]

The plant has also been introduced to other continents. In the United States, kangaroo thorn is a well-known noxious weed in California. [5]


The plant is used as an ornamental or as a dense screening plant. It make an excellent habitat and food source for birds. It grows well in full sun or in a partly shaded position. It can be planted in dry to moist well-drained areas. [3] Seeds require pre-treatment such as scarification prior to planting. [4]

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Acacia s.l., known commonly as mimosa, acacia, thorntree or wattle, is a polyphyletic genus of shrubs and trees belonging to the subfamily Mimosoideae of the family Fabaceae. It was described by the Swedish botanist Carl Linnaeus in 1773 based on the African species Acacia nilotica. Many non-Australian species tend to be thorny, whereas the majority of Australian acacias are not. All species are pod-bearing, with sap and leaves often bearing large amounts of tannins and condensed tannins that historically found use as pharmaceuticals and preservatives.

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<i>Acacia acanthoclada</i> Species of plant

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<i>Acacia longifolia</i> Species of plant

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<i>Acacia enterocarpa</i> Species of plant

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<i>Acacia verticillata</i> species of plant

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<i>Acacia ausfeldii</i> species of plant

Acacia ausfeldii, commonly known as Ausfeld's wattle or whipstick cinnamon wattle, is a shrub species that is endemic to south-eastern Australia. It grows to between 1 and 4 metres high and has phyllodes that are 2 to 7 cm long and 2 to 6 mm wide. The yellow globular flowerheads appear in groups of two or three in the axils of the phyllodes in August to October, followed by straight seed pods which are 4 to 9 cm long and 2 to 4 mm wide.

<i>Acacia macradenia</i> species of plant

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<i>Acacia brachybotrya</i> Species of plant

Acacia brachybotrya, commonly known as grey mulga or grey wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to Australia.

<i>Acacia pickardii</i> Species of plant

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<i>Acacia wilhelmiana</i> Species of plant

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<i>Acacia doratoxylon</i> Species of plant

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<i>Acacia leptostachya</i> species of plant

Acacia leptostachya, commonly known as Townsville wattle or slender wattle, is a shrub or small tree belonging to the genus Acacia and the subgenus Juliflorae that is native to north eastern Australia.


  1. "Acacia paradoxa". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 2008-04-03.
  2. 1 2 3 4 "Acacia paradoxa DC. Kangaroo Acacia". Atals of Living Australia. Global Biodiversity Information Facility . Retrieved 3 October 2018.
  3. 1 2 3 4 "Acacia paradoxa". Yarra Ranges. Retrieved 3 October 2018.
  4. 1 2 3 4 5 6 "Acacia paradoxa (Leguminosae) Kangaroo Thorn". Seeds of South Australia. Government of South Australia . Retrieved 3 October 2018.
  5. "Acacia paradoxa". Plants Profile. United States Department of Agriculture . Retrieved 2 April 2012.

Further reading