''Acacia holotricha'' 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'' that is native to parts of 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 height of . It has ribbed, dark coloured branchlets with linear or widely ovate
stipules that are in length. 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 narrowly elliptic evergreen phyllodes have a length of and a width of and are unequal at the base and acute at the apex with a prominent midrib prominent and lateral nerves. When it blooms it produces
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 seven to ten headed racemes along an ais with a length of with spherical flower-heads containing around fifty yellow flowers. Following flowering thinly coriaceous
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 are produced that have a linear shape and are rounded over and constricted between the seeds. The pod have a length of up to to 18 cm long with longitudinally arranged seeds inside.
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]
Taxonomy
The species was first formally described 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 ...
in 1980 in the work ''A revision of Acacia Mill. in Queensland'' as published in the journal '' Austrobaileya''. It was reclassified by Pedley in 1987 as ''Racosperma holotrichum'' then transferred back to genus ''Acacia'' in 2001.
Distribution
The shrub has a limited distribution in 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
, established_ ...
from around Taroom
Taroom is a town in the Shire of Banana and locality split between the Shire of Banana and the Western Downs Region in Queensland, Australia. At the , Taroom had a population of 869 people.
Geography
The town is located on the Dawson River ...
in the south and up to around Duaringa
Duaringa is a town in the Central Highlands Region and a locality split between the Central Highlands Region and the Aboriginal Shire of Woorabinda in Central Queensland, Australia. In the , Duaringa had a population of 262 people.
Geography
...
in the north.
See also
* List of ''Acacia'' species
References
{{Taxonbar, from=Q15287326
holotricha
Holotricha is an order of ciliates. The classification has fallen from use as a formal taxon, but the terms "holotrich" and "holotrichous" are still applied descriptively to organisms with cilia of uniform length distributed evenly over the surfac ...
Endemic flora of Queensland
Plants described in 1980
Taxa named by Leslie Pedley