Acacia vassalii

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Vassal's wattle
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Clade: Mimosoideae
Genus: Acacia
Species:
A. vassalii
Binomial name
Acacia vassalii
Acacia vassaliiDistMap937.png
Occurrence data from AVH

Acacia vassalii, commonly known as Vassal's wattle, is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to a small area of south western Australia. It is listed as critically endangered with the World Conservation Union, as endangered according to the Environment Protection and Biodiversity Conservation Act 1999 and as rare flora with the Wildlife Conservation Act 1950 in Western Australia. [2]

Contents

Description

The spreading rounded shrub typically grows to a height of 0.15 to 0.3 m (5.9 in to 11.8 in) [3] with hairy branchlets that have persistent linear to triangular shaped stipules with a length of 1 to 2 mm (0.039 to 0.079 in). Like most species of Acacia it has a phyllodes rather than true leaves. The glabrous or lightly hairy phyllodes have a linear to narrowly oblong shape and are straight to slightly "S" shaped with a length of 4 to 8 mm (0.16 to 0.31 in) and with a width of about 1 mm (0.039 in) with no visible nerves. [4] It blooms from June to July and produces yellow flowers. [3]

Taxonomy

The specific epithet honours the French botanist Jacques Vassal. The species was first collected in 1935 from around the Wongan Hills area in 1935 by E.H. Ising. Both Acacia ericifolia and Acacia leptospermoides are quite closely related to A. vassalii. [2]

Distribution

It is native to an area in the Wheatbelt region of Western Australia where it is found growing to sandy or loamy soils. [3] It has a limited range with the bulk of the population found from near Wongan Hills in the south east to around Watheroo further to the north west and is usually a part of low scrub communities. [4] These is a total of 17 known populations composed of a total of around 2033 mature plants with most populations having less than 40 plants. [2]

See also

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References

  1. ↑ Acacia vassalii, Species Profile and Threats Database, Department of the Environment and Heritage, Australia.. Retrieved 16 November 2018.
  2. 1 2 3 "Vassal's wattle (Acacia vassalii) Interim recovery plan 2010-2015" (PDF). Department of Environment and Conservation. 2010. Retrieved 31 January 2021.
  3. 1 2 3 "Acacia vassalii". FloraBase . Western Australian Government Department of Parks and Wildlife.
  4. 1 2 "Acacia vassalii". World Wide Wattle. Western Australian Herbarium . Retrieved 31 January 2021.
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