Acacia abrupta | |
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Type specimen [1] | |
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. abrupta |
Binomial name | |
Acacia abrupta | |
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Occurrence data from Australasian Virtual Herbarium | |
Synonyms [2] | |
Racosperma abruptum(Maiden & Blakely) Pedley |
Acacia abrupta is a species of flowering plant in the family Fabaceae and is endemic to arid parts of central and western Australia. It is a spreading, glabrous, resinous shrub with linear phyllodes that are round on cross-section, heads of golden-yellow flowers, and linear pods.
Acacia abrupta is a spreading, resinous, glabrous shrub that typically grows to a height of 0.6–3 m (2 ft 0 in – 9 ft 10 in) and has light grey bark. The phyllodes are dark green, upright to erect, linear and round in cross-section, usually 30–50 mm (1.2–2.0 in) long and 0.5–1 mm (0.020–0.039 in) wide. The flowers are borne in globe-shaped heads, sometimes the heads in a raceme on a peduncle 8–12 mm (0.31–0.47 in) long, the heads 2–4 mm (0.079–0.157 in) long with 25 to 35 golden-yellow flowers. Flowering occurs from July to September and the pods are linear, up to 50 mm (2.0 in) long and 2.5–3.0 mm (0.098–0.118 in) long with shallow constrictions between the seeds. The seeds are about 4 mm (0.16 in) long with a conspicuous aril. [3] [4] [5] [6] [7]
Acacia abrupta was first formally described in 1927 by the botanists Joseph Maiden and William Blakely in the Journal of the Royal Society of Western Australia from specimens collected by Richard Helms on a sandplain in the Great Victoria Desert, during the Elder Scientific Exploring Expedition in 1891. [8] [9] The specific epithet (abrupta) means "broken off", referring to the abrupt tip of the phyllodes. [10]
This species is closely related to A. ascendens , and can be mistaken for A. helmsiana which shares the same habitat. [3] [4] [5]
This species is native to central Western Australia and the south-west of the Northern Territory where it is found on sand dunes, sandplains and gravelly hillslopes growing in red sandy lateritic based soils. It occurs in the Central Ranges, Gascoyne, Gibson Desert, Great Sandy Desert, Great Victoria Desert, Little Sandy Desert, Murchison and MacDonnell Ranges bioregions of Western Australia and the Northern Territory. [6] [7]
Acacia adoxa, commonly known as the grey-whorled wattle, is a species of flowering plant in the family Fabaceae and is endemic to north-western Australia. It is a dense, low-lying shrub with linear, more or less cylindrical phyllodes in whorls of 6 to 10, heads of golden-yellow flowers, and flat, sticky pods.
Acacia adsurgens, commonly known as whipstick wattle or sugar brother, is a species of flowering plant in the family Fabaceae and is endemic to northern areas of Australia. It is a spreading shrub with many stems, flat, linear phyllodes, densely-flowered spikes of yellow flowers, and linear, paper-like or crusty pods.
Acacia desertorum is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to western Australia.
Acacia drepanocarpa is a shrub belonging to the genus Acacia and the subgenus Juliflorae native to northern Australia.
Acacia hammondii, also known as Hammond's wattle, is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae that is native across northern Australia.
Acacia heteroneura is a shrub belonging to the genus Acacia and the subgenus Juliflorae that is endemic to western Australia.
Acacia oncinocarpa is a shrub or tree belonging to the genus Acacia and the subgenus Juliflorae that is endemic to northern Australia.
Acacia sessilispica is a shrub belonging to the genus Acacia and the subgenus Juliflorae native to Western Australia.
Acacia sibirica, commonly known as bastard mulga or false witchetty bush, is a tree or shrub belonging to the genus Acacia and the subgenus Juliflorae. It is native to arid areas of Australia.
Acacia chrysella is a shrub belonging to the genus Acacia and the subgenus Phyllodineae and is native to Western Australia.
Acacia merrickiae is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to a small area of south western Australia.
Acacia oxyclada is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to western Australia.
Acacia acellerata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a rigid, mostly glabrous shrub with phyllodes that are more or less round on cross-section, heads of golden-yellow flowers, and linear, wavy pods.
Acacia anfractuosa is a shrub or tree of the genus Acacia and the subgenus Plurinerves that is endemic to Western Australia.
Acacia helmsiana, commonly known as Helm's wattle, is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to arid areas of central and western Australia.
Acacia obtecta is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to a small area in south western Australia.
Acacia phlebocarpa, also known as tabletop wattle, is a shrub of the genus Acacia and the subgenus Plurinerves and is native to northern Australia.
Acacia alleniana is a species of flowering plant in the family Fabaceae and is endemic to northern parts of Australia. It is a spindly, open shrub or tree with slender branchlets, thread-like phyllodes, and yellow flowers arranged in 2 to 6 spherical heads in the axils of phyllodes, and thinly leathery pods up to 150 mm (5.9 in) long.
Acacia abbreviata is a species of flowering plant in the family Fabaceae and is endemic to arid parts of northern Australia. It is a spreading, glabrous, resinous shrub with linear to narrowly oblong phyllodes, spike of golden flowers, and linear to lance-shaped pods.
Acacia gracilifolia, commonly known as graceful wattle, is a shrub belonging to the genus Acacia and the subgenus Plurinerves native to a small area of central southern Australia.