| Acacia pterocaulon | |
|---|---|
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. pterocaulon |
| Binomial name | |
| Acacia pterocaulon | |
 | |
| Occurrence data from AVH | |
Acacia pterocaulon is a shrub belonging to the genus Acacia and subgenus Alatae. It is native to a small area in the Mid West region of Western Australia. [1]
The intricate shrub has an erect or sprawling habit with many branches. It typically grows to a height of 0.5 to 1.3 metres (1.6 to 4.3 ft) but can reach up to around 2 m (6.6 ft). [1] It has green glabrous branchlets. The phyllodes are continuous with the branchlets, splitting to form opposing wings along the branchlet with each one extending to the next underneath. Each wing is 2 to 6 millimetres (0.08 to 0.24 in) wide. The free portion of each phyllode has a lanceolate to narrowly triangular shape and is straight or very shallowly incurved with a length of 1 to 5.5 centimetres (0.4 to 2.2 in). [2] It blooms between October and January producing yellow flowers. [1] Each racemose inflorescences has globular head of a 10 to 15 mm (0.39 to 0.59 in) diameter containing 60 to 70 densely packed golden flowers. Linear seed pods form later that are up to 12 cm (4.7 in) in length and 4 to 5 mm (0.16 to 0.20 in) wide. Each oblong seed is 4.5 to 5 mm (0.18 to 0.20 in) long. [2]
The species was first formally described by the botanist Bruce Maslin in 1995 as part of the work Acacia Miscellany 13. Taxonomy of some Western Australian phyllocladinous and aphyllodinous taxa (Leguminosae: Mimosoideae) as published in the journal Nuytsia . It was reclassified by Leslie Pedley in 2003 and Racosperma pterocaulon then transferred back to the current genus in 2006. [3]
The type specimen was collected by Maslin in 1976 near Three Springs. [2]
Acacia willdenowiana has phyllodes resembling those of A. pterocaulon. [4] It is also similar to the closely related Acacia glaucoptera . [2]
The species is confined to a small area between Morawa and Three Springs where it is found on rocky hill slopes where growing in clay-loam or sandy-loam soils. [1] It is often part of the understorey in Eucalyptus woodland communities or in dense Casuarina scrub. [2]
Acacia applanata, also known as golden grass wattle or grass wattle, is a grasslike shrub belonging to the genus Acacia and subgenus Alatae. It is native to the south west of Western Australia.
Acacia bifaria is a shrub belonging to the genus Acacia. It is native to an area along the south coast of Western Australia.
Acacia willdenowiana is a shrub belonging to the genus Acacia. The plant is also commonly known as wattle grass, grass wattle or two-winged acacia. It is native to the south west of Western Australia.
Acacia conniana is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to the southern coast of western Australia.
Acacia hopperiana is a small tree or shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to western Australia.
Acacia sibina is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae the is endemic to parts of western Australia.
Acacia blaxellii, also known as Blaxell's wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae endemic to Western Australia.
Acacia concolorans is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to Western Australia.
Acacia errabunda is a shrub belonging to the genus Acacia and the subgenus Phyllodineae native to Western Australia.
Acacia euthyphylla is a shrub belonging to the genus Acacia and the subgenus Phyllodineae native to Western Australia.
Acacia ryaniana is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to an area along the west coast of 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 eremaea is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is endemic to an area in western Australia.
Acacia longispinea is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia papulosa is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area along the south coast of south western Australia.
Acacia patagiata, also commonly knowns as salt gully wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to south western Australia.
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 roycei is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is endemic to an area of 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.
Acacia saxicola, commonly known as Mount Maroon wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae native to eastern Australia.
