''Acacia beadleana'' is a shrub 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
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 ...
.
Description
The shrub typically grows to a height of with terete hairy branchlets. 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 thick,
terete
Terete is a term in botany used to describe a cross section that is circular, or like a distorted circle, with a single surface wrapping around it.Lichen Vocabulary, Lichens of North America Information, Sylvia and Stephen Sharnoff/ref> This is us ...
, evergreen phyllodes are crowded on the stems and inclined to patent, they have a linear-oblanceolate shape and are shallowly to moderately recurved and have sparse to dense spreading hairs. The phyllodes can be slightly
scabrous
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary o ...
and have a length of and a width of . It blooms between January and February and produces simple
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 that occur singly in the
axil
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, st ...
s and are supported by slender, hairy peduncles. The large spherical flower-heads contain 25 to 50 densely packed bright yellow to golden flowers. After flowering
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 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 ...
form. The dark brown oblong shaped pods have a length of and a width of . The seeds within are arranged transversely and are around in length with a short arillate funicle.
[
]
Taxonomy
The species was first formally described by the botanists Jeremy James Bruhl
Jeremy James Bruhl (born 1956) is an Australian botanist. He is an emeritus professor in the School of Environmental and Rural Science at the University of New England and director of the N.C.W. Beadle Herbarium which holds c.110,000 plant sp ...
and Rodney H.Jones in 2006 as published in the ''Proceedings of the Linnean Society of New South Wales''.specific epithet
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
honours Professor Noel Charles William Beadle, who was foundation Professor of Botany at the University of New England and a noted taxonomist and ecologist.
Distribution
It is found in the Gibraltar Range
The Gibraltar Range is a mountain range in the Northern Tablelands region of New South Wales, Australia. The range extends off the Great Dividing Range at Bald Nob about east northeast of and trends generally east northeast and north northea ...
in north western New South Wales along 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 ...
ridges and rocky slopes among granite outcrops growing in sandy soils in heath 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.Gibraltar Range National Park
Gibraltar Range is a national park in north-eastern New South Wales, Australia, north-east of Glen Innes and north of Sydney. The Park is part of the Washpool and Gibraltar Range area of the World Heritage Site Gondwana Rainforests of Au ...
.
See also
* List of ''Acacia'' species
References
{{Taxonbar, from=Q9562656
beadleana
Flora of New South Wales
Plants described in 2006
Taxa named by Jeremy James Bruhl