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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 semitrullata
Name

Acacia semitrullata Maslin, 1978
Synonyms

Racosperma semitrullatum (Maslin) Pedley

Distribution
Native distribution areas:
Acacia semitrullata

Continental: Australasia
Regional: Australia
Western Australia

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

Maslin, B.R., 1978. Nuytsia; Bulletin of the Western Australian Herbarium. South Perth, W.A. 2 (5): 282.

Links

Govaerts, R. et al. 2020. Acacia semitrullata in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2020 Aug 14. Reference page.
International Plant Names Index. 2019. Acacia semitrullata. Published online. Accessed: Aug 14 2019.
Tropicos.org 2019. Acacia semitrullata. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Aug 14.
Catalogue of Life: 2020 Annual Checklist
Acacia semitrullata – Taxon details on World Wide Wattle.

Vernacular names

Acacia semitrullata is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.

Description

The slender, erect and pungent shrub typically grows to a height of 0.2 to 0.7 metres (0.7 to 2.3 ft).[1] It has orange-brown coloured branches and hairy branchlets with narrowly triangular stipules that are 1 to 2 mm (0.039 to 0.079 in) in length that are incurved. Like most species of Acacia it has phyllodes rather than true leaves. The patent and occasionally reflexed, rigid, greem phyllodes have a narrowly semi-trullate shape with a length of 5 to 10 mm (0.20 to 0.39 in) and a width of 1.3 to 2 mm (0.051 to 0.079 in) with a prominent midrib.[2] It blooms from May to October and produces cream-white flowers.[1]
Taxonomy

The species was first formally described by the botanist Bruce Maslin in 1978 as part of the work Studies in the genus Acacia. A revision of the Uninerves - Triangulares in the journal Nuytsia. It was reclassified as Racosperma semitrullatum by Leslie Pedley in 2003 then transferred back to genus Acacia in 2006.[3]
Distribution

It is native to a small area in the South West region of Western Australia where it is commonly situated on sandplains or in swampy areas growing in clay or sandy soils, sometimes over laterite.[1] the range of the shrub extends from around Yarloop in the north down to around Collie and the Whicher Range in the south where it found growing in open heathland surrounding swamps in open jarrah forest communities.[2]
See also

List of Acacia species

References

"Acacia semitrullata". FloraBase. Western Australian Government Department of Parks and Wildlife.
"Acacia semitrullata". World Wide Wattle. Western Australian Herbarium. Retrieved 19 August 2020.
"Acacia semitrullata Maslin". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 19 August 2020.

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