''Acacia intorta'' is a shrub or tree belonging to the genus ''

Acacia ''Acacia'', commonly known as the wattles or acacias, is a large genus of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa and Australasia. The genus na ...

'' and the subgenus ''Juliflorae'' that is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to arid parts of central

Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...

. The tree has a gnarled appearance and typically grows to a height of with fissured and fibrous grey coloured bark. It has contorted main branches and tend to spread horizontally and has

glabrous Glabrousness (from the Latin ''glaber'' meaning "bald", "hairless", "shaved", "smooth") is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part of ...

branchlets. The erect, evergreen

phyllode Phyllodes are modified petioles or leaf stems, which are leaf-like in appearance and function. In some plants, these become flattened and widened, while the leaf itself becomes reduced or vanishes altogether. Thus the phyllode comes to serve the ...

s are straight and most often terete. The pungent, rigid phyllodes have a length of and a width of and are indistinctly multistriate. It blooms from April to June producing yellow flowers. The rudimentary

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

s occur as flower-spikes with a length of and are not densely flowered. The narrowly oblong

seed pod This page provides a glossary of plant morphology. Botanists and other biologists who study plant morphology use a number of different terms to classify and identify plant organs and parts that can be observed using no more than a handheld magnify ...

s have a length of and a width of . The dark brown seeds inside the pods have an elliptic to oblong shape and are in length. It is native to an area in the

Pilbara The Pilbara () is a large, dry, thinly populated region in the north of Western Australia. It is known for its Aboriginal peoples; its ancient landscapes; the red earth; and its vast mineral deposits, in particular iron ore. It is also a glo ...

and

Goldfields Goldfield or Goldfields may refer to: Places * Goldfield, Arizona, the former name of Youngberg, Arizona, a populated place in the United States * Goldfield, Colorado, a community in the United States * Goldfield, Iowa, a city in the United State ...

regions of

with the bulk of the population found between Meekatharra and

Newman Newman is a surname of English origin and may refer to many people: The surname Newman is widespread in the core Anglosphere. A *Abram Newman (1736–1799), British grocer *Adrian Newman (disambiguation), multiple people *Al Newman (born 1960) ...

where it is found on stony ridges, shape slopes and saline drainage floors where it grows in

calcrete Caliche () is a sedimentary rock, a hardened natural cement of calcium carbonate that binds other materials—such as gravel, sand, clay, and silt. It occurs worldwide, in aridisol and mollisol soil orders—generally in arid or semiarid regions, ...

and alkaline clay soils.

References

{{Taxonbar, from=Q15287417 intorta Acacias of Western Australia Plants described in 1983 Taxa named by Bruce Maslin

See also

References