Jacksonia pungens

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Jacksonia pungens
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. pungens
Binomial name
Jacksonia pungens

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.

Contents

Description

Jacksonia pungens is an erect, rounded, domed shrub that typically grows up to 0.3–1 m (1 ft 0 in – 3 ft 3 in) high and 0.4–1 m (1 ft 4 in – 3 ft 3 in) wide. It has greyish-green branches, scattered, sharply-pointed branchlets mostly 8–73 mm (0.31–2.87 in) long and 1.5–2 mm (0.059–0.079 in) wide, its leaves reduced to egg-shaped, dark brown scales, 1.3–3.7 mm (0.051–0.146 in) long and 0.7–1.6 mm (0.028–0.063 in) wide. The flowers are scattered on the branchlets on a pedicel 1.5–5.5 mm (0.059–0.217 in) long, with egg-shaped bracteoles 5.7–9.3 mm (0.22–0.37 in) long and 2.1–5 mm (0.083–0.197 in) wide. The floral tube is 0.8–1.4 mm (0.031–0.055 in) long and the sepals are papery, with lobes 10.3–13.7 mm (0.41–0.54 in) long, 2–6 mm (0.079–0.236 in) wide and fused for 1.2–1.5 mm (0.047–0.059 in). The standard petal is orange-red with red markings, 7.7–10.2 mm (0.30–0.40 in) long and 7.8–11.2 mm (0.31–0.44 in) deep, the wings orange-red with red markings 8.1–9.2 mm (0.32–0.36 in) long, and the keel is red, 7.3–8.1 mm (0.29–0.32 in) long. The stamens have white filaments with a pink tip, 5.7–10.3 mm (0.22–0.41 in) long. Flowering occurs in October and November, and the fruit is an elliptic, woody, densely hairy pod 6.7–7.1 mm (0.26–0.28 in) long and 4.8–5.4 mm (0.19–0.21 in) wide. [2] [3]

Taxonomy

Jacksonia pungens was first formally described in 2007 by Jennifer Anne Chappill in Australian Systematic Botany from specimens collected by Chappill, Carolyn F. Wilkins and Kelly Anne Shepherd south of Marchagee in 1993. [2] [4] The specific epithet (pungens) means 'ending in a sharp, hard point', [5] referring to the long, pungent branchlets. [2]

Distribution and habitat

This species of Jacksonia grows in tall shrubland on sandy soil or laterite and is only known from remnant populations south of Marchagee in the Avon Wheatbelt and Geraldton Sandplains bioregions of south-western Western Australia. [2] [3]

Conservation status

Jacksonia pungens is listed as "endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "Threatened Flora (Declared Rare Flora — Extant)" by the by the Government of Western Australia Department of Biodiversity, Conservation and Attractions. The main threats to the species are road and rail maintenance, damage caused by vehicles and farming activities. [3] [6]

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 aculeata</i> Species of legume

Jacksonia aculeata is a species of flowering plant in the family Fabaceae and is endemic to the northern Australia. It is a spreading shrub with sharply-pointed, hairy, short side branches, leaves reduced to scales, lemon-yellow flowers, and woody, 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.

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

Jacksonia calcicola is a species of flowering plant in the family Fabaceae and is endemic to the south west of Western Australia. It is a prostrate spreading or erect, prickly shrub with short, curved backwards and sharply pointed end branches, yellow-orange flowers with red markings, and woody, hairy 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 epiphyllum is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is an erect or straggling shrub, the end branches egg-shaped or elliptic phylloclades, the leaves reduced to scale leaves, the flowers yellow-orange with red markings, and woody, densely-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.

Jacksonia lanicarpa is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is an erect shrub with yellow to greyish-green branches, leaves reduced to egg-shaped scales, yellow-orange flowers, and woody, densely 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 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.

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.

References

  1. ↑ "Jacksonia pungens". Australian Plant Census. Retrieved 14 January 2025.
  2. 1 2 3 4 Chappill, Jennifer A.; Wilkins, Carolyn F.; Crisp, Michael D. (2007). "Taxonomic revision of Jacksonia (Leguminosae: Mirbelieae)". Australian Systematic Botany. 20 (6): 587–590.
  3. 1 2 3 "Jacksonia pungens". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Jacksonia pungens". Australian Plant Name Index. Retrieved 14 January 2025.
  5. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 287. ISBN   9780958034180.
  6. ↑ "Conservation advice - Jacksonia pungens" (PDF). Australian Government Department of the Environment. Retrieved 14 January 2025.
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