Acacia baxteri

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Baxter's wattle
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Acacia
Species:
A. baxteri
Binomial name
Acacia baxteri
Acacia baxteriDistMap106.png
Acacia baxteri occurrence data from Australasian Virtual Herbarium [3]

Acacia baxteri, commonly known as Baxter's wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae, and is endemic to the south west of Western Australia.

Contents

Description

The compact and pungent shrub typically grows to a height of 0.2 to 1 metre (1 to 3 ft). It blooms from September to December and produces yellow flowers. [4] The shrub has rigid, striate-ribbed and glabrous branchlets. The thick rigid phyllodes are sessile, with a narrowly linear to oblong-elliptic shape and are around 10 to 25 millimetres (0.39 to 0.98 in) in length with a width of 1 to 4 mm (0.04 to 0.16 in). There is one simple inflorescence per axil with globular flower heads containing 30 to 50 flowers. After flowering curved woody red-brown seed pods form that are up to 6.5 millimetres (0.26 in) long and 3 to 5 mm (0.12 to 0.20 in). The grey-brown seeds have an oblong shape and are 5 to 6 mm (0.20 to 0.24 in) in length.

Taxonomy

The species was first formally described by the botanist George Bentham in 1842 in the work Notes on Mimoseae, with a synopsis of species. as published in London Journal of Botany. [1] [2] There are two recognised synonyms for A. baxteri; Acacia bagsteri as described by George Bentham and Racosperma baxteri as described by Leslie Pedley. [5]

It is closely related to Acacia andrewsii and has phyllodes that are quite similar to Acacia unifissilis . [6]

The species epithet, baxteri, commemorates Bagster [2] (William Baxter). [7]

Distribution

It is native to an area in the Wheatbelt and the Great Southern regions of Western Australia. [4] The population is disjunct with most found between Ongerup and Albany with scattered populations found further north. The shrub is commonly found s part of Eucalyptus woodlands or open mallee heath communities. [6]

See also

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References

  1. 1 2 "Acacia baxteri". Australian Plant Name Index, IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  2. 1 2 3 Bentham, G. in Hooker, W.J. (1842) Notes on Mimoseae, with a synopsis of species. London Journal of Botany 1:327
  3. ↑ "DOI Details". doi.ala.org.au. doi:10.26197/5c0b1388984eb . Retrieved 8 December 2018.
  4. 1 2 "Acacia baxteri". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. ↑ "Acacia baxteri Benth". Atlas of Living Australia. Global Biodiversity Information Facility . Retrieved 19 August 2018.
  6. 1 2 "Acacia baxteri". World Wide Wattle. Western Australian Herbarium. Retrieved 19 August 2018.
  7. ↑ CHAH Biographical notes: Baxter, William (? - 1836)
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