Jacksonia flexuosa

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Jacksonia flexuosa
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. flexuosa
Binomial name
Jacksonia flexuosa

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.

Contents

Description

Jacksonia flexuosa is an erect, densely branched, soft shrub that typically grows up to 1–2 m (3 ft 3 in – 6 ft 7 in) high and 0.5–1.5 m (1 ft 8 in – 4 ft 11 in) wide, its branches greyish-green, the end branches short and zig-zagged, densely hairy, 3.5–12 mm (0.14–0.47 in) long and 0.4–0.7 mm (0.016–0.028 in) wide. Its leaves are reduced to egg-shaped scales, 0.7–1.7 mm (0.028–0.067 in) long, 0.3–0.6 mm (0.012–0.024 in) wide and sharply pointed. The flowers are arranged near the tips of the branches, each flower on a pedicel 1–2 mm (0.039–0.079 in) long. There are narrowly egg-shaped bracteoles 1.0–1.6 mm (0.039–0.063 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 not ribbed. The sepals are membranous, the upper lobes 3.7 mm (0.15 in) long and 1.0–1.6 mm (0.039–0.063 in) wide and fused at the base for 3.1–3.8 mm (0.12–0.15 in), the lower lobes longer and narrower. The petals are yellow, the standard petal 4.2–5.2 mm (0.17–0.20 in) long and 5.9–6.0 mm (0.23–0.24 in) deep, the wings 5.1–5.8 mm (0.20–0.23 in) long, and the keel 5.1–6.0 mm (0.20–0.24 in) long. The stamens have green filaments 2.9–5.3 mm (0.11–0.21 in) long. Flowering occurs from April to June, and the fruit is a woody, elliptic pod, 3.8–4.0 mm (0.15–0.16 in) long, 1.6–1.8 mm (0.063–0.071 in) wide and densely covered with white hairs. [2]

Taxonomy

Jacksonia flexuosa was first formally described in 2007 by Jennifer Anne Chappill in Australian Systematic Botany from specimens collected east of Narbarlek in Arnhem Land in 1992. [2] [3] The specific epithet (flexuosa) means 'flexuose' or 'zig-zagged', [4] because this species differs from J. pendens in its strongly zig-zagged branches. [2]

Distribution and habitat

This species of Jacksonia grows in woodland and is only known from near Nabarlek. [2]

Conservation status

Jacksonia flexuose is listed as "not threatened" in the Territory Parks and Wildlife Conservation Act. [5]

Related Research Articles

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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

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

Jacksonia sternbergiana, commonly known as stinkwood, is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. The Noongar peoples know the plant as kabbur, koorpa or mondurn. It is an erect or weeping shrub or tree with dull green branches, straight, sharply-pointed side branches, its leaves reduced to scales, yellowish-orange flowers, 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 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.

<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.

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 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 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.

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.

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.

<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.

References

  1. ↑ "Jacksonia flexuosa". Australian Plant Census. Retrieved 5 November 2024.
  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): 517–521.
  3. ↑ "Jacksonia flexuosa". Australian Plant Name Index. Retrieved 5 November 2024.
  4. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (4th ed.). Kardinya, WA: Four Gables Press. p. 210. ISBN   9780958034180.
  5. ↑ "Jacksonia flexuosa". Northern Territory Government. Retrieved 5 November 2024.
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