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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 truncata
Name

Acacia truncata (Burm.f.) hort. ex Hoffmanns., 1824
Synonyms

Acacia biflora Paxton
Acacia cuneata Benth.
Acacia cuneata var. glabra Meisn.
Acacia cuneiformis Ser.
Acacia decipiens var. elongata Benth.
Adianthum truncatum Burm.f.
Mimosa decipiens K.D.Koenig
Racosperma truncatum (Burm.f.) Pedley

Distribution
Native distribution areas:
Acacia truncata

Continental: Australasia
Regional: Australia
Western Australia
Introduced into:
India

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

Hoffmannsegg, J.C.v., 1824. Verzeichniss der Pflanzenkulturen in den Grafl. Hoffmannseggischen Garten zu Dresden und Rammenau... 34.

Links

Govaerts, R. et al. 2020. Acacia truncata in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Aug 16. Reference page.
International Plant Names Index. 2019. Acacia truncata. Published online. Accessed: Aug 16 2019.
Tropicos.org 2019. Acacia truncata. Missouri Botanical Garden. Published online. Accessed: 16 Aug 2019.
Catalogue of Life: 2021 Annual Checklist
Acacia truncata – Taxon details on World Wide Wattle.
USDA, ARS, Germplasm Resources Information Network. Acacia truncata in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names


Acacia truncata, commonly known as the angle leaved wattle[1] or west coast wattle,[2] is a coastal shrub in the family Fabaceae, with a native distribution along the southwest coast of Western Australia. A specimen of this 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 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 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 species, A. truncata has phyllodes 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 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 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, then transferred back to the genus Acacia in 2016.[7]

The species is closely related to and similar in appearance to Acacia littorea.[5][9]

The species name is taken from the 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 through the Wheatbelt and Peel and into the South West. It is found as far north as Carnamah and as far south as Harvey. It grows in sandy and skeletal soils and is found among sand dunes and patches of coastal 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, Lomandra maritima and Scaevola crassifolia. A. truncata requires some protection from strong winds.[1] It is tolerant of frost and salt water spray making it ideal for coastal gardens.[6]
See also

List of Acacia species

References

"Acacia truncata Angle-leaved wattle" (PDF). Plants of the west coast. Cambridge Coast Care. Retrieved 23 August 2018.
"Acacia truncata West Coast Wattle". Nindethana Australian Seeds. Retrieved 23 August 2018.
"Acacia truncata". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
"Acacia truncata". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia truncata". World Wide Wattle. Western Australian Herbarium. Retrieved 23 August 2018.
"Commonly grown Acacia". Wattles - Genus Acacia. Australian National Botanic Gardens. Retrieved 23 August 2018.
"Acacia truncata Hort. ex Hoffmanns". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 23 August 2018.
"Acacia decipiens". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
"Acacia littorea". World Wide Wattle. Western Australian Herbarium. Retrieved 23 August 2018.
"Local Plants". Cottesloe Coastcare Association. Retrieved 23 August 2018.

"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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