''Acacia tenuinervis'' 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 native to north 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 ...
.
Description
The shrub or tree typically grows to a maximum height of and can send out
root suckers. It has black to grey-brown coloured bark that is quite furrowed. The orange-red or red-brown branchlets are covered with a fine white powder are usually angular towards the apices and become
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 ...
and scurfy with age. Like most species of ''Acacia'' it has
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 rather than true leaves. The glabrous and scurfy evergreen phyllodes have a narrowly elliptic shape and are straight to sickle shaped with a length of and a width of and have three to five slightly prominent main nerves. It blooms between August and September producing golden flowers. The cylindrical flower-spikes are in length. The scurfy and chartaceous
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 that form after flowering have a linear shape and are constricted and raised over seeds with a length of and a width of . The black seeds are arranged longitudinally within the pod. The seeds have an oblong-elliptic shape with a length of .
Taxonomy
The species was first formally described in 1978 by the botanist
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 ...
as a part of the work ''A revision of Acacia Mill. in Queensland'' as published in the journal ''
Austrobaileya
''Austrobaileya'' is the sole genus consisting of a single species that constitutes the entire flowering plant family Austrobaileyaceae. The species ''Austrobaileya scandens'' grows naturally only in the Wet Tropics rainforests of northeast ...
''. Pedley later reclassified it as ''Racosperma tenuinerve'' in 1987 and it was then transferred back to genus ''Acacia'' in 2001.
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 ...
a few small sized areas of
South East Queensland
South East Queensland (SEQ) is a bio-geographical, metropolitan, political and administrative region of the state of Queensland in Australia, with a population of approximately 3.8 million people out of the state's population of 5.1 million. T ...
including
Glenmorgan
Glenmorgan is a rural town in the Western Downs Region and a locality split between the Western Downs Region and the Maranoa Region, Queensland, Australia. In the the locality of Glenmorgan had a population of 148 people.
Geography
The Town i ...
,
Boondooma
Boondooma is a rural locality in the South Burnett Region, Queensland, Australia. In the , Boondooma had a population of 76 people.
Geography
The Boondooma Dam and its associated lake is on south-eastern boundary between Boondooma and Okeden ...
and Impey pastoral properties where it is found growing in gravelly
ironstone
Ironstone is a sedimentary rock, either deposited directly as a ferruginous sediment or created by chemical replacement, that contains a substantial proportion of an iron ore compound from which iron (Fe) can be smelted commercially. Not to be con ...
soils as a part of ''
Acacia harpophylla
''Acacia harpophylla'', commonly known as brigalow, brigalow spearwood or orkor, is an endemic tree of Australia. The Aboriginal Australian group the Gamilaraay peoples know the tree as Barranbaa or Burrii. It is found in central and coasta ...
'' scrub or open ''
Eucalyptus
''Eucalyptus'' () is a genus of over seven hundred species of flowering trees, shrubs or mallees in the myrtle family, Myrtaceae. Along with several other genera in the tribe Eucalypteae, including '' Corymbia'', they are commonly known as euca ...
'' woodland communities.
[
]
See also
* List of ''Acacia'' species
References
{{Taxonbar, from=Q15289228
tenuinervis
Flora of Queensland
Taxa named by Leslie Pedley
Plants described in 1978