''Acacia pubicosta'' is a tree or 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 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 tree or shrub typically grows to a height of up to . It has branchlets that are densely covered in soft, fine, silvery white and straight hairs set close against the surface and
glabrous towards the extremities. Like many 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 thin, glabrous, evergreen phyllodes have a linear shape with a length of and a width of . The midrib is not prominent and the lateral nerves are inconspicuous.
[ When it blooms from February to March and May to August][ it produces racemose inflorescences along a raceme axis of about with spherical flower-heads containing 15 to 20 white or cream coloured flowers. The thinly coriaceous, blackish and glabrous seed pods that form after flowering to a length of around and a width of containing longitudinally arranged seeds.][
]
Taxonomy
It is closely related to '' Acacia polifolia'' and they both have some affinity with '' Acacia hamiltoniana''.[
]
Distribution
It is endemic to south eastern Queensland around Biggenden and is also present on the Blackland tableland where it is found on steep rocky slopesEucalyptus acmenoides
''Eucalyptus acmenoides'', commonly known as white mahogany or barayly,Les Robinson - Field Guide to the Native Plants of Sydney, page 40 is a tree that is endemic to eastern Australia. It is a large tree with grey to reddish brown, stringy b ...
'' and '' Corymbia citriodora''.
See also
* List of ''Acacia'' species
References
{{Taxonbar, from=Q9568330
pubicosta
Flora of Queensland
Plants described in 1939