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

Fabaceae Fabaceae () or Leguminosae,International Code of Nomen ...

and is

endemic Endemism is the state of a species being found only 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 foun ...

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 racemoid is an unbranched, indeterminate growth, 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 ...

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

bract In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also lo ...

s and

bracteoles In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also look ...

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 Etymology The term ''sepalum'' ...

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

keel The keel is the bottom-most longitudinal structural element of a watercraft, important for stability. On some sailboats, it may have a fluid dynamics, hydrodynamic and counterbalancing purpose as well. The keel laying, laying of the keel is often ...

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 people, Swiss botany, botanist. René Louiche Desfontaines launched de Candolle's botanical career by recommending him at a herbarium. Within a couple ...

in his '' Prodromus Systematis Naturalis Regni Vegetabilis''. The

specific epithet In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...

(''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 Victor ...

Bargo Bargo is a town in the Macarthur Region of Greater Sydney in New South Wales, Australia, in the Wollondilly Shire. It is located approximately halfway between Campbelltown and Bowral, about 100 km south west of the Sydney CBD. It is sit ...

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