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''Acacia podalyriifolia'' is a perennial tree which is fast-growing and widely cultivated. It is native to Australia but is also naturalised in 
Common names for it are Mount Morgan wattle, Queensland silver wattle, Queensland wattle, pearl acacia, pearl wattle and silver wattle.
Malaysia
Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...
, Africa, India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
and South America. Its uses include environmental management and it is also used as an ornamental tree. It is very closely related to '' Acacia uncifera''. It grows to about in height and about the same in total width. It blooms during winter.
Common names for it are Mount Morgan wattle, Queensland silver wattle, Queensland wattle, pearl acacia, pearl wattle and silver wattle.
Description
The tall shrub or small tree typically reached a height and width of around . Like most species of ''Acacia'' it has phyllodes rather than true leaves. It has grey coloured, smooth or finely fissured bark with terete and hairy branchlets that are often covered with a fine white powdery coating. The silver-grey to grey-green coloured phyllodes have a broadly elliptic to ovate shape and a length of and a width of and have hairs on margins and a prominent midvein. It blooms throughout they year producing simpleinflorescence
An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...
s in groups of 8 to 22 along an axillary raceme with an axis length of with spherical flower-heads that have a diameter of and contain 15 to 30 bright golden flowers.
Taxonomy
The species was first formally described by the botanistGeorge Don
George Don (29 April 1798 – 25 February 1856) was a Scottish botanist and plant collector.
Life and career
George Don was born at Doo Hillock, Forfar, Angus, Scotland on 29 April 1798 to Caroline Clementina Stuart and George Don (b.1756), p ...
in 1832 as part of the work ''General History of Dichlamydeous Plants''. It was reclassified as ''Racosperma podalyriifolium'' by Leslie Pedley
Leslie Pedley (19 May 1930 – 27 November 2018)IPNILeslie Pedley/ref> was an Australian botanist who specialised in the genus ''Acacia''. He is notable for bringing into use the generic name ''Racosperma'', creating a split in the genus, which r ...
in 1987 then transferred back to genus ''Acacia'' in 2014. Other synonyms include ''Acacia podalyrifolia''.
Distribution
In Australia it isendemic
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 else ...
to parts of south eastern Queensland
)
, nickname = Sunshine State
, image_map = Queensland in Australia.svg
, map_caption = Location of Queensland in Australia
, subdivision_type = Country
, subdivision_name = Australia
, established_title = Before federation
, establishe ...
and the north east of New South Wales
)
, nickname =
, image_map = New South Wales in Australia.svg
, map_caption = Location of New South Wales in AustraliaCoordinates:
, subdivision_type = Country
, subdivision_name = Australia
, established_title = Before federation
, es ...
in areas to the north of Legume but has become naturalised further south where it is found in open woodland or forest communities. It has also become naturalised in 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 ...
and South Australia
South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories ...
.
Outside of Australia, it is naturalized in southern and eastern Africa, in some parts of the Indian sub-continent and south-east Asia, on some Indian Ocean islands, in New Zealand, in Brazil, in Argentina, and in southwestern USA. Overall, it thrives in subtropical and tropical conditions and tolerates semiarid climates.
As a weed
Being fast to spread, it is considered an environmental weed in New South Wales, Victoria, Southern Australia, and Western Australia. It is relatively widespread in South Africa, where it is considered a "potential transformer" of natural vegetation due to the possibility of it replacing indigenous vegetation.See also
* List of ''Acacia'' speciesReferences
{{Taxonbar, from=Q2701186 podalyriifolia Trees of Australia Trees of Africa Trees of South America Fabales of Australia Flora of New South Wales Flora of Queensland Garden plants of Australia