# Acacia truncata

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***Acacia truncata***, commonly known as the **angle leaved wattle**[1] or **west coast wattle**,[2] is a coastal [shrub](/source/Shrub) in the [family](/source/Family_(taxonomy)) [Fabaceae](/source/Fabaceae), with a native distribution along the southwest coast of [Western Australia](/source/Western_Australia). A specimen of this [wattle](https://en.wiktionary.org/wiki/wattle) was part of an early European botanical collection, perhaps the first from Australia.[3]

## Description

The shrub is a dense and dome shaped plant 0.5 to 2.3 metres (2 to 8 ft) high.[4] It has ribbed and [glabrous](/source/Glabrousness_(botany)) branchlets.[5] Flowerheads are globe-shaped and composed of 7-16 pale yellow flowers, on stalks between 10 and 25 mm (0.39 and 0.98 in) long. Following flowering it will form blackish curved to linear [seed pods](/source/Seed_pod) that are about 6.5 centimetres (2.6 in) in length and 2 to 4 millimetres (0.079 to 0.157 in) wide with thick yellowish margins. The shiny brown seeds are longitudinally arranged in the pod. They have an oblong to elliptic shape and are 3 to 3.5 mm (0.118 to 0.138 in) long.[3][5] Like many other *[Acacia](/source/Acacia)* species, *A. truncata* has [phyllodes](/source/Phyllode) rather than true leaves. The triangular[6] phyllodes range from 9 to 25 mm (0.35 to 0.98 in) long and 5 to 13 mm (0.197 to 0.512 in) wide.[3][5]

## Taxonomy

The species was initially described as *Adiantum truncatum* by [Nicolaas Laurens Burman](/source/Nicolaas_Laurens_Burman) in 1768 in the work *Flora Indica: cu accedit series zoophytorum indicorum, nec non Prodromus Florae Capensis*.[7]

It was first formally described as *Acacia truncata* by the botanist [Johann Centurius Hoffmannsegg](/source/Johann_Centurius_Hoffmannsegg) in 1824 as part of the work *Verzeichniss der Pflanzenkulturen in der Gräflich Hoffmannseggischen Garten zu Dresden und Rammenau*.[7]

The name *Acacia decipiens* R.Br.is regarded as a synonym for this taxon.[8] In 2003 it was reclassified as *Racosperma truncatum* by [Leslie Pedley](/source/Leslie_Pedley), then transferred back to the genus *Acacia* in 2016.[7]

The species is closely related to and similar in appearance to *[Acacia littorea](/source/Acacia_littorea)*.[5][9]

The species name is taken from the [Latin](/source/Latin) word meaning *to cut off*, referring to the short blunt end of the phyllodes.[10]

## Distribution

*A. truncata* is found along the west coast of Western Australia extending from the [Mid West](/source/Mid_West_(Western_Australia)) through the [Wheatbelt](/source/Wheatbelt_(Western_Australia)) and [Peel](/source/Peel_(Western_Australia)) and into the [South West](/source/South_West_(Western_Australia)). It is found as far north as [Carnamah](/source/Carnamah,_Western_Australia) and as far south as [Harvey](/source/Harvey,_Western_Australia). It grows in sandy and skeletal soils and is found among sand dunes and patches of coastal [limestone](/source/Limestone)[4] as part of coastal heath communities.[5]

## Cultivation and Uses

The plant commercially available as seedlings[11] in seed form.[2] It is easily propagated from seed collected in December or January.[1] The seeds need to be treated with hot water treatment or lightly scarified prior to planting. It grows best in a free-draining seed-raising soil mix.[6] The species is used for restoration work, particularly in coastal areas, in mixed plantings with other low shrubby species such as *[Olearia axillaris](/source/Olearia_axillaris)*, *[Lomandra maritima](/source/Lomandra_maritima)* and *[Scaevola crassifolia](/source/Scaevola_crassifolia)*. *A. truncata* requires some protection from strong winds.[1] It is tolerant of [frost](/source/Frost) and salt water spray making it ideal for coastal gardens.[6]

## See also

- [List of *Acacia* species](/source/List_of_Acacia_species)

## References

1. ["Acacia truncata Angle-leaved wattle"](https://web.archive.org/web/20180314190456/http://cambridgecoastcare.com.au/wp-content/uploads/2015/05/P42_Acacia-truncata-ANGLE-LEAVED-WATTLE.pdf). *Plants of the west coast*. Cambridge Coast Care. Archived from [the original](http://cambridgecoastcare.com.au/wp-content/uploads/2015/05/P42_Acacia-truncata-ANGLE-LEAVED-WATTLE.pdf) on 14 March 2018. Retrieved 23 August 2018.

1. ["*Acacia truncata* West Coast Wattle"](https://www.nindethana.net.au/Product-Detail.aspx?p=317). Nindethana Australian Seeds. Retrieved 23 August 2018.

1. ["*Acacia truncata*"](http://www.worldwidewattle.com/speciesgallery/truncata.php?id=3584). *World Wide Wattle*. Western Australian Herbarium. Retrieved 23 August 2018.

1. ["Commonly grown *Acacia*"](http://www.anbg.gov.au/acacia/species.html). *Wattles - Genus Acacia*. Australian National Botanic Gardens. Retrieved 23 August 2018.

1. ["*Acacia truncata* Hort. ex Hoffmanns."](https://bie.ala.org.au/species/http://id.biodiversity.org.au/node/apni/2909307#names). *Atlas of Living Australia*. [Global Biodiversity Information Facility](/source/Global_Biodiversity_Information_Facility). Retrieved 23 August 2018.

1. ["*Acacia littorea*"](http://worldwidewattle.com/speciesgallery/littorea.php). *World Wide Wattle*. Western Australian Herbarium. Retrieved 23 August 2018.

1. ["Local Plants"](https://web.archive.org/web/20180823105904/https://cottesloecoastcare.org/dir/local_plants). Cottesloe Coastcare Association. Archived from [the original](https://cottesloecoastcare.org/dir/local_plants) on 23 August 2018. Retrieved 23 August 2018.

1. ["*Acacia truncata*"](https://apacewa.org.au/plant/acacia-truncata/). Apace WA. Retrieved 23 August 2018.

- Rippey, Elizabeth & Rowland (Reinette), Barbara (2004 [1995]). "Notes to *Acacia littorea*". *Coastal plants: Perth and the south-west region*. 2nd ed. Perth: University of Western Australia Press. pp. 26, 27. ISBN 978-1-920694-05-0.

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Adapted from the Wikipedia article [Acacia truncata](https://en.wikipedia.org/wiki/Acacia_truncata) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Acacia_truncata?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.