Jacksonia ramulosa

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Jacksonia ramulosa
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Jacksonia
Species:
J. ramulosa
Binomial name
Jacksonia ramulosa

Jacksonia ramulosa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, tangled shrub with greyish-green branches, scattered, sharply-pointed end branchlets, leaves reduced to dark brown, triangular scales, orange-red flowers with red markings, and woody, densely hairy, broadly elliptic pods.

Contents

Description

Jacksonia ramulosa is an erect, open to compact, tangled shrub that typically grows up to 0.3–1 m (1 ft 0 in – 3 ft 3 in) high and 1.0–1.2 m (3 ft 3 in – 3 ft 11 in) wide. It has greyish-green branches, scattered, sharply-pointed branchlets mostly 1.5–14 mm (0.059–0.551 in) long and 0.5–1.5 mm (0.020–0.059 in) wide, its leaves reduced to triangular, dark brown scales, 0.7–1.3 mm (0.028–0.051 in) long, 0.6–1.3 mm (0.024–0.051 in) wide and sometimes with toothed edges. The flowers are scattered on the branchlets on a pedicel 1.8–4.3 mm (0.071–0.169 in) long, with egg-shaped bracteoles 0.7–1.2 mm (0.028–0.047 in) long and 0.45–0.80 mm (0.018–0.031 in) wide on the upper part of the pedicel. The floral tube is 0.9–1 mm (0.035–0.039 in) long and not ribbed, and the sepals are membranous, with lobes 6.1–7.9 mm (0.24–0.31 in) long, 0.9–1.2 mm (0.035–0.047 in) wide and fused for 0.5–0.6 mm (0.020–0.024 in). The standard petal is orange-red with red markings, 4.7–6.7 mm (0.19–0.26 in) long and 5.0–6.5 mm (0.20–0.26 in) deep, the wings orange-red with red markings 4.6–7.0 mm (0.18–0.28 in) long, and the keel is red, 5.0–6.4 mm (0.20–0.25 in) long. The stamens have green filaments, 4.0–7.5 mm (0.16–0.30 in) long. Flowering occurs from September to January, and the fruit is a broadly elliptic, woody, densely hairy pod 4.5–6.0 mm (0.18–0.24 in) long and 3–4 mm (0.12–0.16 in) wide. [2] [3]

Taxonomy

Jacksonia ramulosa was first formally described in 2007 by Jennifer Anne Chappill in Australian Systematic Botany from specimens collected by Gregory John Keighery in 2003. [2] [4] The specific epithet (ramulosa) means 'bearing branchlets'. [5]

Distribution and habitat

This species of Jacksonia grows in shrubland and woodland on sandy soil or clay in scattered locations between Kalbarri and Mount Esmond in Cape Arid National Park, in the Avon Wheatbelt, Coolgardie, Geraldton Sandplains, Jarrah Forest and Mallee bioregions of south-western Western Australia. [2] [3]

Conservation status

Jacksonia ramulosa is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions. [3]

Related Research Articles

<i>Jacksonia lehmannii</i> Species of legume

Jacksonia lehmannii is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect to prostrate or spreading, spindly shrub with greyish-green branches, sharply-pointed side branches, its leaves reduced to scales leaves, yellowish-orange flowers with orange-red markings, and woody, hairy pods.

<i>Jacksonia horrida</i> Species of legume

Jacksonia horrida is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect or spreading to prostrate, bushy shrub with greyish-green branches ending in short, flattened, sharply-pointed side branches, the leaves reduced to scales and the flowers scattered and yellow-orange with red markings.

<i>Jacksonia acicularis</i> Species of legume

Jacksonia acicularis is a species of flowering plant in the family Fabaceae and is endemic to the west of Western Australia. It is an erect, spindly shrub with very sharply-pointed short side branches, leaves reduced to scales, orange flowers with red markings, and densely hairy pods.

<i>Jacksonia angulata</i> Species of legume

Jacksonia angulata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a tufted, spreading to prostrate shrub often with zig-zagged branches, sharply-pointed side branches or phylloclades, leaves reduced to broadly egg-shaped scales, yellow-orange to orange flowers with a red "eye", and woody, densely hairy pods.

<i>Jacksonia arenicola</i> Species of legume

Jacksonia arenicola is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, broom-like shrub with densely hairy, sharply-pointed phylloclades, yellow-orange flowers with red markings, and woody pods that are hairy at first, later glabrous.

Jacksonia arida is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is an erect or prostrate shrub with tangled branches, sharply-pointed branchlets, yellow-orange to orange flowers, and woody pods.

Jacksonia calycina is a species of flowering plant in the family Fabaceae and is endemic to the south west of Western Australia. It is an erect or straggling shrub with sharply pointed end branches, yellow-orange flowers with red and yellow markings, and woody, hairy pods.

<i>Jacksonia compressa</i> Species of legume

Jacksonia compressa is a species of flowering plant in the family Fabaceae and is endemic to the south west of Western Australia. It is an erect, bushy shrub with sharply pointed end branches, yellow-orange flowers with red markings, and woody, hairy pods.

<i>Jacksonia debilis</i> Species of legume

Jacksonia debilis is a species of flowering plant in the family Fabaceae and is endemic to the south west of Western Australia. It is a spreading to prostrate shrub with curved phylloclades, yellow-orange flowers with red markings, and woody, hairy pods.

Jacksonia dendrospinosa is a species of flowering plant in the family Fabaceae and is endemic to the far west of Western Australia. It is a dense, erect shrub or tree with straight, sharply-pointed branches, leaves reduced to scales, scattered yellow-orange flowers with red markings, and membranous, hairy pods.

<i>Jacksonia elongata</i> Species of legume

Jacksonia elongata is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is an erect or spreading, spindly shrub with yellowish-green branches, yellow-orange flowers with red markings, and woody, densely-hairy pods.

Jacksonia foliosa is a species of flowering plant in the family Fabaceae and is endemic to the south west of Western Australia. It is a low-lying or erect shrub with sharply pointed end branches, yellow-orange flowers with red markings, and woody, hairy pods.

<i>Jacksonia hakeoides</i> Species of legume

Jacksonia hakeoides is a species of flowering plant in the family Fabaceae and is endemic to the south west of Western Australia. It is a low, densely-branched shrub with sharply-pointed end branches, the leaves reduced to scales, yellow-orange to orange flowers with red markings, and woody, densely hairy pods.

<i>Jacksonia humilis</i> Species of legume

Jacksonia humilis is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is a spreading to prostrate shrub with dull green branches, sharply-pointed phylloclades, yellow-orange flowers with red markings, and membranous, densely-hairy pods.

Jacksonia intricata is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is a domed, tangled shrub with copper-coloured branches when fresh, the end branches sharply-pointed, the leaves reduced to scales, yellow flowers with red markings, and woody, densely hairy pods.

<i>Jacksonia macrocalyx</i> Species of legume

Jacksonia macrocalyx is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect shrub with greyish-green branches, short, sharply-pointed phylloclades, leaves reduced to scales leaves, yellow flowers, and woody, hairy pods.

<i>Jacksonia nutans</i> Species of legume

Jacksonia nutans is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, prickly shrub with yellow to greyish-green branches, sharply-pointed branchlets, leaves reduced to triangular scales, orange flowers with red markings, and woody, densely hairy, round or elliptic pods.

Jacksonia pungens is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect, rounded, domed shrub with greyish-green branches, scattered, sharply-pointed end branches, leaves reduced to dark brown, egg-shaped scales, orange-red flowers with red markings, and woody, densely hairy, elliptic pods.

Jacksonia quairading, commonly known as Quairading stinkwood, is a species of flowering plant in the family Fabaceae and is endemic to a restricted area in the south-west of Western Australia. It is a low-lying, straggling shrub with greyish-green branches, the end branchlets sharply-pointed, the leaves reduced to dark brown, egg-shaped scales, orange flowers with red markings, and woody, densely hairy, flattened elliptic pods.

<i>Jacksonia racemosa</i> Species of legume

Jacksonia racemosa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect to prostrate, spindly shrub with greyish-green branches, with leaves reduced to scales leaves, yellow flowers with red markings and scattered along the branches, and woody, hairy pods.

References

  1. ↑ "Jacksonia ramulosa". Australian Plant Census. Retrieved 4 February 2025.
  2. 1 2 3 Chappill, Jennifer A.; Wilkins, Carolyn F.; Crisp, Michael D. (2007). "Taxonomic revision of Jacksonia (Leguminosae: Mirbelieae)". Australian Systematic Botany. 20 (6): 607, 609–610.
  3. 1 2 3 "Jacksonia ramulosa". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Jacksonia ramulosa". Australian Plant Name Index. Retrieved 4 February 2025.
  5. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 291. ISBN   9780958034180.
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