| Acacia horridula | |
|---|---|
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. horridula |
| Binomial name | |
| Acacia horridula | |
 | |
| Occurrence data from AVH | |
Acacia horridula is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.
The slender single-stemmed shrub typically grows to a height of 0.3 to 0.6 metres (1 to 2 ft) and produces yellow flowers from May to August. [1] It usually has red-brown to light brown coloured branchlets that are covered in a dense mat of woolly hairs and setaceous to narrowly triangular stipules with a length of 2.5 to 4 mm (0.098 to 0.157 in). Like most species of Acacia it has phyllodes rather than true leaves. The evergreen patent phyllodes are usually crowded on the branchlets and have a narrowly semi-trullate shape. [2] The simple inflorescences occur singly in the axils with spherical heads containing four pale yellow flowers. The terete, red-brown and striated seed pods that form after flowering are curved and narrowed at both ends with a length of up to 7.5 cm (3.0 in) and a width of around 3.5 mm (0.14 in). The oblong seeds inside are arranged longitudinally and are 4 to 5 mm (0.16 to 0.20 in) in length with a conical and terminal aril. [2]
The species was first formally described by the botanist Carl Meissner in 1844 as part of the work Leguminosae in Plantae Preissianae . It was reclassified as Racosperma horridulum by Leslie Pedley in 2003 and then transferred back to genus Acacia in 2006. [3]
It is native to an area along the south coast in the Peel and South West regions of Western Australia. [1] [4] It is often situated on rocky hillsides growing in sandy or gravelly soils over granite [1] particularly in the Darling Range usually as a part of Eucalyptus woodland communities. [2]
Acacia limbata is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic across northern Australia.
Acacia rhodophloia, commonly known as minni ritchi or western red mulga, is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to a large area of arid central western Australia. The Indigenous group the Kurrama peoples know the plant as mantaru.
Acacia calcarata is a shrub belonging to the genus Acacia and the subgenus Phyllodineae.
Acacia concolorans is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to Western Australia.
Acacia costata is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to Western Australia.
Acacia daphnifolia, also known as northern manna gum, is a tree or shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to Western Australia.
Acacia dempsteri is a shrub belonging to the genus Acacia and the subgenus Phyllodineae endemic to south western Australia.
Acacia hastulata is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to an area in south western Australia.
Acacia pycnocephala is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.
Acacia retrorsa is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to western Australia
Acacia rossei, also known as Yellowdine wattle, is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to south western Australia.
Acacia scirpifolia is a shrub or tree of the genus Acacia and the subgenus Phyllodineae that is endemic to western Australia
Acacia spathulifolia commonly known as Gold carpet or the Gold carpet wattle is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to coastal parts of western Australia.
Acacia sphacelata is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to 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 tetanophylla is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area of south western Australia.
Acacia cretacea, also known as chalky wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to South Australia.
Acacia saliciformis is a shrub or tree belonging to the genus Acacia and the subgenus Phyllodineae native to eastern 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.
Acacia kydrensis, commonly known as Kydra wattle, is a shrub of the genus Acacia and the subgenus Phyllodineae that is endemic to south eastern Australia.
