Jacksonia pendens

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Jacksonia pendens
Jacksonia pendens.jpg
Near the type location
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. pendens
Binomial name
Jacksonia pendens

Jacksonia pendens is a species of flowering plant in the family Fabaceae and is endemic to the north of the Northern Territory. It is an erect, densely branching shrub, the end branches sharply-pointed phylloclades, the leaves reduced to narrowly egg-shaped scale leaves, the flowers yellow-orange, and the fruit a woody, densely hairy pod.

Contents

Description

Jacksonia pendens is an erect, densely branched shrub that typically grows up to 1.2–4 m (3 ft 11 in – 13 ft 1 in) high and 1–2 m (3 ft 3 in – 6 ft 7 in) wide, its branches green or greyish-green, the end branches densely-hairy, sharply-pointed phylloclades. Its leaves are reduced to egg-shaped or narrowly egg-shaped, sharply-pointed, dark brown scales, 0.5–1.5 mm (0.020–0.059 in) long, 0.35–1.0 mm (0.014–0.039 in) wide. The flowers are arranged near the tips of the branches, each flower on a pedicel 1.6–2.3 mm (0.063–0.091 in) long. There are egg-shaped bracteoles 0.7–1.2 mm (0.028–0.047 in) long and 0.4–0.6 mm (0.016–0.024 in) wide on the pedicels. The floral tube is 1.1–1.4 mm (0.043–0.055 in) long and ribbed. The sepals are membranous, the lobes 1.7–2.3 mm (0.067–0.091 in) long and 1.4–1.7 mm (0.055–0.067 in) wide and fused at the base for 3.2–3.7 mm (0.13–0.15 in). The petals are yellow-orange, the standard petal 4.7–5.4 mm (0.19–0.21 in) long and 5–7 mm (0.20–0.28 in) deep, the wings 4.0–4.7 mm (0.16–0.19 in) long, and the keel 4.0–4.7 mm (0.16–0.19 in) long. The stamens have green filaments 3.1–5.3 mm (0.12–0.21 in) long. Flowering occurs from April to October, and the fruit is a woody, elliptic pod, 4.3–5.5 mm (0.17–0.22 in) long, 2.3–2.5 mm (0.091–0.098 in) wide and densely covered with white hairs. [2]

Taxonomy

Jacksonia pendens was first formally described in 2007 by Jennifer Anne Chappill in Australian Systematic Botany from specimens collected 14.9 km (9.3 mi) from Pine Creek Road in 1992. [2] [3] The specific epithet (pendens) means 'hanging down'. [4]

Distribution and habitat

This species of Jacksonia grows in woodland over laterite or sandstone in the Arnhem Plateau, Darwin Coastal and Pine Creek bioregions in the north of the Northern Territory. [5]

Conservation status

Jacksonia pendens is listed as of "least concern" under the Territory Parks and Wildlife Conservation Act. [5]

Related Research Articles

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

Jacksonia furcellata, commonly known as grey stinkwood, is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a prostrate to low-lying, or weeping erect shrub with greyish-green branches, sharply-pointed side branches, its leaves reduced to scales leaves, yellowish-orange flowers, and woody, hairy pods.

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

Jacksonia sericea, commonly known as waldjumi, 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 greyish-green branches, straight, sharply-pointed side branches, leaves reduced to scales, orange flowers with red markings, and woody, densely hairy pods.

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

Jacksonia anthoclada is a species of flowering plant in the family Fabaceae and is endemic to the south-west 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.

<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 arnhemica is a species of flowering plant in the family Fabaceae and is endemic to the Northern Territory. It is an erect, densely branched, delicate shrub, the end branches sharply-pointed phylloclades, with yellow flowers, and woody, hairy pods.

Jacksonia chappilliae is a species of flowering plant in the family Fabaceae and is endemic to a restricted area of northern New South Wales. It is an erect shrub with its end-branches sharply-pointed phylloclades, and yellow-orange flowers with red markings scattered along the branches.

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

Jacksonia condensata is a species of flowering plant in the family Fabaceae and is endemic to the south west of Western Australia. It is a slender, ascending to erect shrub with sharply-pointed phylloclades, the leaves reduced to scales, yellow to yellow-orange flowers, 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.

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

Jacksonia dilatata is a species of flowering plant in the family Fabaceae and is endemic to the northern Australia. It is usually an erect shrub or small tree with narrowly egg-shaped phylloclades, the leaves reduced scales, and yellow flowers in clusters of up to 20 at the ends of the phylloclades.

Jacksonia divisa is a species of flowering plant in the family Fabaceae and is endemic to a restricted part of Kakadu National Park. It is an erect, densely branching shrub, its end branches flattened, hairy, leaf-like phylloclades, its leaves reduced to broadly lance-shaped scales, with yellow flowers, and woody, hairy pods.

Jacksonia effusa is a species of flowering plant in the family Fabaceae and is endemic to a restricted area near Nitmiluk (Katherine) Gorge. It is a sprawling shrub, its end branches sharply-pointed phylloclades, its leaves reduced to sharply-pointed, narrowly egg-shaped scales, its flowers pale yellow, and its fruit, woody, 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.

Jacksonia flexuosa is a species of flowering plant in the family Fabaceae and is endemic to a restricted part of the Northern Territory. It is an erect, densely branching shrub, the end branches short, zig-zagged and scattered along the branches and densely hairy, the leaves reduced to sharply-pointed scale leaves, the flowers yellow, and the fruit is a woody, densely hairy pod.

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

Jacksonia forrestii, commonly known as broom bush, is a species of flowering plant in the family Fabaceae and is endemic to the north-west of Australia. It is an erect, slender, weeping shrub or tree with sharply pointed phylloclades, yellow to yellow-orange flowers without markings, and woody, hairy pods.

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

Jacksonia grevilleoides is a species of flowering plant in the family Fabaceae and is endemic to the south west of Western Australia. It is a prostrate or erect shrub with variably-shaped phylloclades, yellow-orange flowers 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 lateritica is a species of flowering plant in the family Fabaceae and is endemic to northern Australia. It is an erect, sparsely branching shrub, the end branches phylloclades, the leaves reduced to egg-shaped scale leaves, the flowers yellow-orange, and the fruit a woody, densely hairy pod.

<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.

References

  1. ↑ "Jacksonia pendens". Australian Plant Census. Retrieved 3 January 2025.
  2. 1 2 Chappill, Jennifer A.; Wilkins, Carolyn F.; Crisp, Michael D. (2007). "Taxonomic revision of Jacksonia (Leguminosae: Mirbelieae)". Australian Systematic Botany. 20 (6): 517–519.
  3. ↑ "Jacksonia pendens". Australian Plant Name Index. Retrieved 3 January 2025.
  4. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (4th ed.). Kardinya, WA: Four Gables Press. p. 273. ISBN   9780958034180.
  5. 1 2 "Jacksonia pendens". Northern Territory Government. Retrieved 3 January 2025.
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