Jacksonia divisa

Last updated

Jacksonia divisa
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. divisa
Binomial name
Jacksonia divisa

Jacksonia divisa is a species of flowering plant in the family Fabaceae and is endemic to the a restricted area 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.

Contents

Description

Jacksonia divisa is an erect, densely branching shrub, that typically grows up to 1.5–3 m (4 ft 11 in – 9 ft 10 in) high and 0.5–1 m (1 ft 8 in – 3 ft 3 in) wide, its branches greyish-green. Its end branches are narrowly wedge-shaped, 15–58 mm (0.59–2.28 in) long and 3.5–18 mm (0.14–0.71 in) wide with forked tips. The leaves are reduced to broadly lance-shaped, reddish-brown scales, 5.5–10 mm (0.22–0.39 in) long and 1.0–1.8 mm (0.039–0.071 in) wide. The flowers are clustered in the axils of phylloclades, each flower on a pedicel 1.5–3 mm (0.059–0.118 in) long. There are lance-shaped bracteoles 5.3–9.5 mm (0.21–0.37 in) long and 1.2–2.2 mm (0.047–0.087 in) wide at the base of the floral tube. The floral tube is 1.3–1.5 mm (0.051–0.059 in) long and the sepals are membranous, the lobes 7.2–8.3 mm (0.28–0.33 in) long and 1.7–2.1 mm (0.067–0.083 in) wide. The flowers are yellow, the standard petal is 8.5–11.9 mm (0.33–0.47 in) long and 11–14.6 mm (0.43–0.57 in) deep, the wings 7.0–7.4 mm (0.28–0.29 in) long, and the keel 4.5–4.8 mm (0.18–0.19 in) long. The stamens have red filaments 2.0–5.7 mm (0.079–0.224 in) long. Flowering occurs from April to June, and the fruit is a woody, hairy, flattened, broadly elliptic pod, 9.0–9.5 mm (0.35–0.37 in) long and 3.8–4.0 mm (0.15–0.16 in) wide. [2] [3]

Taxonomy

Jacksonia divisa was first formally described in 2007 by Jennifer Anne Chappill in Australian Systematic Botany from specimens collected near Bloomfield Springs in Kakadu National Park. [2] [4] The specific epithet (divisa) means 'divided', [5] referring to the tips of the phylloclades. [2]

Distribution and habitat

This species of Jacksonia is only known from near the type location, where it grows on a sandy ledge of a sandstone escarpment in the Pine Creek bioregion of Kakadu National Park. [2] [3]

Conservation status

Jacksonia divisa is listed as "vulnerable" under the Northern Territory Government Territory Parks and Wildlife Conservation Act . [3]

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 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 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 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 alata</i> Species of legume

Jacksonia alata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a tufted, semi-prostrate to erect shrub with flattened branches, sharply-pointed side branches or phylloclades, leaves reduced to narrowly lance-shaped scales, yellow-orange flowers with a red "eye", and woody, 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.

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

Jacksonia argentea is a species of flowering plant in the family Fabaceae and is endemic to the far north of Western Australia. It is an erect, silver-grey shrub with flattened, narrowly lance-shaped to narrowly elliptical cladodes or phylloclades, bright yellow flowers, and woody hairy pods.

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 carduacea is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a bushy shrub with its end-branches elliptic to egg-shaped phylloclades, and yellow-orange flowers in clusters in the axils of phylloclades.

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 cupulifera</i> Species of legume

Jacksonia cupulifera is a species of flowering plant in the family Fabaceae and is endemic to the north-west of Western Australia. It is an erect shrub or weeping tree with sharply-pointed phylloclades, its leaves reduced to scales and yellow-orange flowers scattered along the branches.

<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 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.

References

  1. ↑ "Jacksonia divisa". Australian Plant Census. Retrieved 19 October 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): 507–510.
  3. 1 2 3 "Jacksonia divisa". Northern Territory Government. Retrieved 19 October 2024.
  4. ↑ "Jacksonia divisa". Australian Plant Name Index. Retrieved 19 October 2024.
  5. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 186. ISBN   9780958034180.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.