Watheroo wattle | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fabales |
Family: | Fabaceae |
Subfamily: | Caesalpinioideae |
Clade: | Mimosoid clade |
Genus: | Acacia |
Species: | A. aristulata
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Binomial name | |
Acacia aristulata | |
Occurrence data from AVH |
Acacia aristulata, also known as Watheroo wattle, [1] is a shrub belonging to the genus Acacia and the subgenus Phyllodineae endemic to Western Australia.
The erect or scrambling shrub typically grows to a height of 0.25 to 1 metre (1 to 3 ft) [2] and with a width of up to 1 m (3 ft 3 in). [1] It blooms from September to December and produces lemon- yellow to creamy-white flowers. [2] The spherical flower heads can last until January or February and the seed pods take around a year to become mature. [1]
The species was first formally described by the botanist Bruce Maslin in 199 as part of the work Acacia miscellany. The taxonomy of fifty-five species of Acacia, primarily Western Australian, in section Phyllodineae (Leguminosae: Mimosoideae) as published in the journal Nuytsia. It was reclassified as Racosperma aristulatum in 2003 by Leslie Pedley, then transferred back to the genus Acacia in 2005. [3]
It is native to an area on the Lesueur sandplain in the Wheatbelt region of Western Australia. [2] The shrub is found between Moora and Watheroo and is known in four localities extending within a range of approximately 35 km (22 mi). [1]
It is most often situated among rocky outcrops on top of low rocky ridges and hills growing in sandy-loamy-clay soils over granite and chert. The shrub is often a part of Allocasuarina woodland or low open shrubland communities. Species commonly associated with Acacia aristulata include Allocasuarina huegeliana, Diplolaena angustifolium, Dianella revoluta and Dryandra sessilis. [1]