Acacia hippuroides

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Acacia hippuroides
Acacia hippuroides (14596159989).jpg
Illustration of Acacia hippuroides
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. hippuroides
Binomial name
Acacia hippuroides
Heward ex. Benth.
Acacia hippuroidesDistMap434.png
Occurrence data from AVH

Acacia hippuroides is a shrub belonging to the genus Acacia and the subgenus Lycopodiifoliae that is endemic to north western Australia

Contents

Description

The diffuse, spreading shrub typically grows to a height of 0.3 to 1.6 metres (1 to 5 ft). [1] The branchlets are covered with densely matted woolly velvety yellow hairs that area about 0.5 mm (0.020 in) in length and also have 1 to 2 mm (0.039 to 0.079 in) long stipules. Like most species of Acacia it has phyllodes rather than true leaves. The phyllodes occur in whorls containing 12 to 15 individual phyllodes. The phyllodes are spreading and incurved, they are grooved on upper surface and have a length if 12 to 20 mm (0.47 to 0.79 in) and a width of 0.3 to 0.4 mm (0.012 to 0.016 in). [2] It blooms from March to October and produces yellow flowers. [1] The obloid to spherical flower-heads contain 30 to 40 flowers. After flowering crustaceous to coriaceous seed pods for that have a broadly linear shape and are more or less flat and curved. The sparsely to moderately villous pods have a length of around 25 mm (0.98 in) and a width of 8 to 15 mm (0.31 to 0.59 in) and have obscure nerves that are arranged in a reticular manner. The seeds inside are arranged transversely and are about 4 mm (0.16 in) in length. [2]

Taxonomy

The species was first formally described by Robert Heward and George Bentham in 1842 as a part of William Jackson Hookers work Notes on Mimoseae, with a synopsis of species as published in the London Journal of Botany. It was reclassified as Racosperma hippuroides by Leslie Pedley in 2003 then transferred back to genus Acacia in 2006. [3]

Distribution

It is native to an area in the Kimberley region of Western Australia where it is commonly situated on undulating plains, rocky hills and ranges where it grows in red sandy or skeletal soils over quartzite or sandstone. [1] The bulk of the population is found in coastal areas of the west Kimberley from around the Dampier Peninsula, on the Buccaneer and Bonaparte Archipelagoes in the north down to around Thangoo Station in the south where it is usually part of in woodland and shrubland communities sometimes in seepage areas. [2]

See also

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References

  1. 1 2 3 "Acacia hippuroides". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  2. 1 2 3 "Acacia hippuroides Heward ex Benth". Wattle - Acacias of Australia. Lucid Central. Retrieved 23 April 2020.
  3. ↑ "Acacia hippuroides Heward ex Benth". Atlas of Living Australia. Global Biodiversity Information Facility . Retrieved 23 April 2020.
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