Acacia unguicula | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fabales |
Family: | Fabaceae |
Clade: | Mimosoideae |
Genus: | Acacia |
Species: | A. unguicula |
Binomial name | |
Acacia unguicula | |
Occurrence data from AVH |
Acacia unguicula is a shrub of the genus Acacia and the subgenus Plurinerves. It is native to a small area in the Mid West region of Western Australia. [1]
The erect open pungent shrub typically grows to a height of 0.75 to 2 metres (2 to 7 ft) but can be as tall as 3 metres (10 ft) and has smooth grey bark. The phyllodes are rigid and erect, olive green and clustered towards the ends of the branches. They are narrowly oblong to oblanceolate in shape with a pungent smell growing to 40 millimetres (1.6 in) long and 4 millimetres (0.16 in) wide with 14 to 16 prominent nerves. It blooms from August to September and produces yellow flowers. The flower heads are deep golden, globular, and approximately 5 to 6 mm (0.20 to 0.24 in) in diameter found in clusters of 24-34 flowers on stalks 7 to 11 mm (0.28 to 0.43 in) long. Reddish-brown seed pods form later that are linear that become coiled. The pods are generally 60 mm (2.4 in) long with a width of 2 mm (0.08 in). [2]
A. unguicula is known from three populations on a pastoral lease at Mount Singleton, approximately 280 kilometres (174 mi) south-east of Geraldton [3] near Yalgoo. [1] It is found on the upper slopes and summit of Mt Singleton among open scrubland, growing in rocky clay, brown clayey sand or brown loamy soils with dolerite. [3]
The species was originally described by the botanists Richard Sumner Cowan and Bruce Maslin in 1990 as part of the work Acacia Miscellany 3. Some new microneurous taxa of Western Australia related to A. multineata (Leguminosae: Mimosoideae: Section Plurinerves) from Western Australia. published in the journal Nuytsia. Synonyms for the plant include Acacia unguiculata, Racosperma unguiculatum and Racosperma unguiculum as described by Pedley in 2003. [4]
The plant was listed a critically endangered in 2006 under the Environment Protection and Biodiversity Conservation Act 1999. [3] The range of A. unguicula is estimated to be less than 1 square kilometre (247 acres) with a total population that is estimated at 43 mature individuals. The small population size is a result of grazing pressure, particularly from goats. [3]
Acacia brachypoda, known colloquially as western wheatbelt wattle or Chinocup wattle, is an endangered species of Acacia restricted to a small locality in western Australia's wheatbelt.
Acacia argutifolia, commonly known as the East Barrens wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae.
Acacia adenogonia is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to north western Australia.
Acacia anfractuosa is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is endemic to Western Australia.
Acacia ascendens is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area in south western Australia.
Acacia aulacophylla is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to western Australia.
Acacia auratiflora, commonly known as the orange-flowered wattle, is a shrub of the genus Acacia and the subgenus Plurinerves. It is listed as an endangered species.
Acacia balsamea, commonly known as balsam wattle, is a shrub of the genus Acacia and the subgenus Plurinerves.
Acacia declinata is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area along the south coast in south western Australia.
Acacia dissona is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia donaldsonii is a shrub of the genus Acacia and the subgenus Plurinerves that is endemism in an area of south western Australia.
Acacia lanuginophylla, or woolly wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to south western Australia. It is currently listed as a vulnerable species according to the Environment Protection Biodiversity Conservation Act 1999.
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Acacia pelophila is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area along the west coast of western Australia.
Acacia pharangites, commonly known as Wongan gully wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area of south western Australia and is listed as endangered according to the Environment Protection and Biodiversity Conservation Act 1999.
Acacia sciophanes, commonly known as the Ghost wattle or Wundowlin wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area in south western Australia. In 1995 it was declared as rare in 1995 according to the Western Australian Wildlife Conservation Act 1950 and is listed as endangered under the Environment Protection and Biodiversity Conservation Act 1999.
Acacia speckii is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is endemic to a small area in central western Australia.
Acacia tetanophylla is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia undosa is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia vittata, commonly known as Lake Logue wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area in western Australia.