''Jacksonia anthoclada'' is a species of flowering plant in the family

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

south-west The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each se ...

of Western Australia. It is an erect, single-stemmed shrub with hairy, elliptic to egg-shaped phylloclades with sharply-pointed edges, yellow-orange flowers with red markings, and hairy, woody pods.

Description

''Jacksonia anthoclada'' is an erect, single-stemmed shrub that typically grows up to high and wide, its branches yellowish-brown. Its phylloclades are elliptic to egg-shaped with the narrower end towards the base, long, wide and hairy with prominent veins. The nodes on the edges of the phyllodes are sharply-pointed. The flowers are arranged singly on the nodes of the phyllocades on a

pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures ...

long. There are egg-shaped bracteoles long on the pedicels but that sometimes fall off as the flowers open. The floral tube is long and the sepals are membranous, long and wide. The petals are yellow-orange with red markings, the standard petal long, the wings long, and the keel long. The

stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filame ...

s have green to pale pink

filament The word filament, which is descended from Latin ''filum'' meaning " thread", is used in English for a variety of thread-like structures, including: Astronomy * Galaxy filament, the largest known cosmic structures in the universe * Solar filament ...

s long. Flowering occurs from November to April, and the fruit is a woody, densely hairy, broadly elliptic pod long and wide.

Taxonomy

''Jacksonia anthoclada'' was first formally described in 2007 by

Jennifer Anne Chappill Jennifer Anne Chappill (born 1959 in Melbourne – died 8 August 2006 in Perth) was an Australians, Australian botanist. Chappill studied botany at the University of Melbourne and was awarded a Master of Science degree in 1983, and a Doctor of Phi ...

in '' Australian Systematic Botany'' from specimens south of the Halfway Mill Roadhouse on the Brand Highway by Chappill and

Carolyn F. Wilkins Carolyn F. Wilkins (born 1945) is an Australian botanist, who currently (April 2020) works for the Western Australian Department of Biodiversity, Conservation and Attractions. She (together with others) has revised the genera, '' Jacksonia'' a ...

in 1991. 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 ...

(''anthoclada'') means 'a flower-shoot' referring to the flowers arranged singly on the phylloclades.

Distribution and habitat

This species of ''Jacksonia'' grows on sandplains on tall shrubland south of Eneabba, east of

Mount Lesueur Mount Lesueur is a near-circular, flat-topped mesa located from Jurien Bay in Western Australia. It rises above the surrounding lateritic plain of Lesueur National Park which has eroded away around it. Mount Lesueur was first sighted and nam ...

and in

Badgingarra National Park Badgingarra National Park is a national park in Western Australia, 190 km north of Perth off the Brand Highway adjacent to the town of Badgingarra. The park is in area and features high breakaway country overlooking low undulating sandpl ...

, in the Geraldton Sandplains bioregion of south-western Western Australia.

Conservation status

''Jacksonia anthoclada'' is listed as " Priority Three" meaning that it is poorly known and known from only a few locations but is not under imminent threat.

References

External links

''Jacksonia anthoclada'' occurrence data
from the Australasian Virtual Herbarium {{Taxonbar, from=Q51044770 Fabales of Australia Flora of Western Australia anthoclada Plants described in 2007