Acacia Ruppii
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''Acacia ruppii'', commonly known as Rupp's wattle, is a shrub 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 ''Phyllodineae'' native to eastern
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
. It is listed as
endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inva ...
in the '' Environment Protection and Biodiversity Conservation Act 1999''.


Description

The shrub typically grows to a height of and has an open bushy habit. It has shortly villous branchlets with crowded green
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 that have a linear to narrowly oblanceolate or narrowly elliptic shape and can be straight to incurved. The phyllodes are flat with a length of and a width of and have a prominent midrib. It blooms between July and September producing
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 with one to seven heads per raceme with simple ones scattered throughout. The spherical flower-heads have a diameter of and contain between 25 and 50 golden coloured flowers. Following flowering coriaceous, dark brown to blackish
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 form that have a linear shape but can be curved to various degrees. The glabrous or shortly villous pods have a length of up to and a width of . The shiny black seeds inside are arranged longitudinally and have an oblong-elliptic shape with a length of with a clavate
aril An aril (pronounced ), also called an arillus, is a specialized outgrowth from a seed that partly or completely covers the seed. An arillode or false aril is sometimes distinguished: whereas an aril grows from the attachment point of the see ...
.


Distribution

It 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 a large area where it has a scattered distribution extending from the south east of
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 , established_ ...
in the north around Wyberba down to around Torrington in
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 the south where it is found on elevated tablelands growing in sandy
granite Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies undergro ...
based soils often as a part of open scrub or woodland communities. In Queensland ''Acacia ruppii'' is treated as conspecific with '' A. torringtonensis''.


See also

* List of ''Acacia'' species


References

{{Taxonbar, from=Q9568832 ruppii Flora of Queensland Flora of New South Wales Plants described in 1912 Taxa named by Joseph Maiden