Acacia uncinella

Life-forms

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 uncinella
Name

Acacia uncinella Benth., 1855
Synonyms

Acacia uncinifolia G.Nicholson
Racosperma uncinellum (Benth.) Pedley

Homonyms

Acacia uncinella DC. ex Steud. = Mimosa aculeaticarpa Ortega

Distribution
Native distribution areas:
Acacia uncinella

Continental: Australasia
Regional: Australia
Western Australia

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Bentham, G., 1855. Linnaea. Ein Journal für die Botanik in ihrem ganzen Umfange 26: 613.

Links

Govaerts, R. et al. 2020. Acacia uncinella in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 17. Reference page.
International Plant Names Index. 2019. Acacia uncinella. Published online. Accessed: Aug 17 2019.
Tropicos.org 2019. Acacia uncinella. Missouri Botanical Garden. Published online. Accessed: 17 Aug 2019.
Catalogue of Life: 2021 Annual Checklist
Acacia uncinella – Taxon details on World Wide Wattle.

Acacia uncinella is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.

Description

The rounded shrub typically grows to a height of 0.3 to 3 metres (1 to 10 ft)[1] and has cylindrical, weakly angled and glabrous to hairy branchlets. Like most species of Acacia it has phyllodes rather than true leaves. The evergreen phyllodes are straight to slightly curved with a length of 1 to 3.5 cm (0.39 to 1.38 in) and have a diameter of 0.7 to 1.5 mm (0.028 to 0.059 in) and have eight distant raised to plane nerves.[2] It blooms from August to October and produces yellow flowers.[1] The simple inflorescences occur in pairs in the axils and have spherical flower-heads with a diameter of 2.8 to 4.5 mm (0.11 to 0.18 in) containing 16 to 30 golden coloured flowers. Glabrous and thinly crustaceous seed pods form after flowering that have a linear shape but are slightly raised over and constricted between each of the seeds. The pods have a length of about 4 to 5 cm (1.6 to 2.0 in) and a width og 2.5 to 3.5 mm (0.098 to 0.138 in) and contain subglossy mottled blackish coloured seeds that have an elliptic or oblong-elliptic shape and are 2.5 to 3.5 mm (0.098 to 0.138 in) in length and have a crested aril.[2]
Distribution

It is native to an area in the Wheatbelt and Goldfields-Esperance regions of Western Australia where it is commonly situated around salt flats and lakes, on slopes or sandplains growing in rocky loamy or sandy soils.[1] It has a scattered distribution with the bulk of the population found from Ongerup in the west to around the Wittenoom Hills approximately 50 km (31 mi) north of Esperance to the east and up to around Hyden in the north. Other outlying populations are found around Merredin, Kellerberrin and Boorabbin National Park as well as to the south of Zanthus where it is often a part of Banksia and Casuarina scrubland and Eucalyptus scrub-woodland communities.[2]
See also

List of Acacia species

References

"Acacia uncinella". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia uncinella Benth". Wattle - Acacias of Australia. Lucid Central. Retrieved 20 January 2021.