''Acacia ashbyae'', commonly known as Ashby's wattle, is a species of
wattle
Wattle or wattles may refer to:
Plants
*''Acacia sensu lato'', polyphyletic genus of plants commonly known as wattle, especially in Australia and South Africa
**''Acacia'', large genus of shrubs and trees, native to Australasia
**Black wattle, c ...
that is endemic to
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...
.
Description
The wattle grows as a rounded, dense and spreading
shrub
A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...
, up to high and wide. The narrow, flat, pale 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 are long by wide, with new growth covered in white hairs. It produces bright yellow, cylindrical flowers, about long, on short
raceme
A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...
s from July to September.
Taxonomy
The species was first formally described by the botanist Bruce Maslin
Bruce Roger Maslin (born 3 May 1946) is an Australian botanist, known for his work on ''Acacia'' taxonomy.
Born in Bridgetown, Western Australia, he obtained an honours degree in botany from the University of Western Australia in 1967, then to ...
in 1974 as part of the work ''Studies in the genus Acacia - 2 - Miscellaneous new phyllodinous species'' published in the journal ''Nuytsia
''Nuytsia floribunda'' is a hemiparasitic tree found in Western Australia. The species is known locally as moodjar and, more recently, the Christmas tree or Western Australian Christmas tree. The display of intensely bright flowers during the ...
''. It was reclassified in 2003 by 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 ''Racosperma ashbyae'' then transferred back to the genus ''Acacia'' in 2006.epithet
An epithet (, ), also byname, is a descriptive term (word or phrase) known for accompanying or occurring in place of a name and having entered common usage. It has various shades of meaning when applied to seemingly real or fictitious people, di ...
''ashbyae'' honours botanical illustrator and plant collector Alison Ashby.
Distribution and habitat
It occurs on sand
Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class of s ...
y and loam
Loam (in geology and soil science) is soil composed mostly of sand (particle size > ), silt (particle size > ), and a smaller amount of clay (particle size < ). By weight, its mineral composition is about 40–40–20% concentration of sand–sil ...
y soils along roadsides, on rocky rises and sandplains in the Avon Wheatbelt, Geraldton Sandplains and Yalgoo IBRA
The Interim Biogeographic Regionalisation for Australia (IBRA) is a biogeographic regionalisation of Australia developed by the Australian government's Department of Sustainability, Environment, Water, Population, and Communities. It was devel ...
bioregions.[
]
See also
* List of ''Acacia'' species
References
{{Taxonbar, from=Q15289373
ashbyae
Acacias of Western Australia
Fabales of Australia
Plants described in 1974
Taxa named by Bruce Maslin