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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Fabales

Familia: Fabaceae
Subfamilia: Caesalpinioideae
Tribus: Acacieae
Genus: Acacia
Species: Acacia depressa

Acacia depressa Maslin

Nuytsia 1 (5): 422 (1975). nom. nov.

Acacia depressa, also commonly known as echidna wattle, is a shrub of the genus Acacia and the subgenus Pulchellae that is endemic to south western Australia. It was listed as vulnerable according the Environment Protection and Biodiversity Conservation Act 1999 in 2007.[2]


The dense prostrate spreading shrub typically grows to a height of 0.05 to 0.15 metres (0.2 to 0.5 ft)[3] and tends to form mats that can over 0.5 m (1 ft 8 in) in width with hairy and spiny branchlets. The milky green to grey-green, bipinnate and glabrous leaves have one pair of pinnae that are 2 to 4 mm (0.079 to 0.157 in) in length and have three to four pairs if pinnules which have narrowly oblong to oblong-oblanceolate shape and are 2 to 3 mm (0.079 to 0.118 in) in length and about 1 mm (0.039 in) wide.[4] It blooms from December to January and produces yellow flowers.[3] It forms simple inflorescences that occur singly in the axils and have spherical flower-heads that contain 12 to 15 light golden coloured flowers. Following flowering firmly chartaceous seed pods form that have a narrowly oblong shape with a length of 1 to 2 cm (0.39 to 0.79 in) and a width of around 3 mm (0.12 in) and have a somewhat thickened margin.[4]

It is native to an area in the Wheatbelt region of Western Australia where it is commonly situated on low rocky hills and rises where it grows in gravelly lateritic soils.[3] It has a limited distribution around Lake Grace as a part of low shrubland or open heath communities.[4]
See also

List of Acacia species

External links

"Acacia depressa". Flora of Australia Online. Department of the Environment and Heritage, Australian Government. Edit this at Wikidata

Acacia depressa, Species Profile and Threats Database, Department of the Environment and Heritage, Australia.. Retrieved 16 November 2018.
"Recovery planning action not commenced list at the time of EPBC Act amendments, February 2007 (revised June 2009, corrected November 2009)" (PDF). Department of the Environment, Water, Heritage and the Arts. Retrieved 3 February 2021.
"Acacia depressa". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia depressa Maslin". Wattle - Acacias of Australia. Lucid Central. Retrieved 2 February 2021.

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