''Dillwynia acicularis'' is a species of flowering plant in the family

Fabaceae The Fabaceae or Leguminosae,International Code of Nomenc ...

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. It is an erect shrub with linear, grooved leaves and yellow flowers with red markings.

Description

''Dillwynia acicularis'' is an erect shrub that typically grows to a height of with hairy stems. The leaves are erect, narrow linear, sometimes triangular in cross-section, long with a longitudinal groove on the upper surface. The flowers are arranged in

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 on the ends of branchlets with leaves at the base, and hairy

bract In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of ...

s and

bracteoles In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of ...

about long. The

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

s are long, and the standard petal is long and the

keel The keel is the bottom-most longitudinal structural element on a vessel. On some sailboats, it may have a hydrodynamic and counterbalancing purpose, as well. As the laying down of the keel is the initial step in the construction of a ship, in Br ...

is yellow with red markings.

Taxonomy and naming

''Dillwynia acicularis'' was first formally described in 1825 by

Augustin Pyramus de Candolle Augustin Pyramus (or Pyrame) de Candolle (, , ; 4 February 17789 September 1841) was a Swiss botanist. René Louiche Desfontaines launched de Candolle's botanical career by recommending him at a herbarium. Within a couple of years de Candol ...

in his ''

Prodromus Systematis Naturalis Regni Vegetabilis ''Prodromus Systematis Naturalis Regni Vegetabilis'' (1824–1873), also known by its standard botanical abbreviation ''Prodr. (DC.)'', is a 17-volume treatise on botany initiated by Augustin Pyramus de Candolle. De Candolle intended it as a summa ...

''. The

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 ...

(''acicularis'') means "needle-pointed".

Distribution

This dillwynia grows in forest on sandstone or granite in the Sydney region, between the

Goulburn River The Goulburn River, a major inland perennial river of the Goulburn Broken catchment, part of the Murray-Darling basin, is located in the alpine, Northern Country/North Central, and Southern Riverina regions of the Australian state of Victoria. ...

Bargo Bargo is a town in the Macarthur Region, New South Wales, Australia, in the Wollondilly Shire. It is approximately 100 km south west of Sydney. It is situated between the township of Tahmoor (north) and the village of Yanderra (south), a ...

and Braidwood in eastern New South Wales.

References

{{Taxonbar, from=Q15533562 acicularis Flora of New South Wales Taxa named by Augustin Pyramus de Candolle Plants described in 1825 Mirbelioids