Jacksonia nematoclada

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Jacksonia nematoclada
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. nematoclada
Binomial name
Jacksonia nematoclada
Synonyms [1]

Jacksonia nematoclada is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is a low, spreading shrub with sharply pointed phylloclades, yellow-orange flowers with red markings, and woody, densely hairy pods.

Contents

Description

Jacksonia nematoclada is a low, spreading, densely tufted shrub that typically grows up to 15–30 cm (5.9–11.8 in) high and 12–60 m (39–197 ft) wide, its branches greyish green and ribbed. Its end branches are sharply-pointed phylloclades, its leaves reduced to egg-shaped, dark brown scales, 0.8–1.8 mm (0.031–0.071 in) long and 0.4–1 mm (0.016–0.039 in) wide. The flowers are scattered near the ends of branches on a straight pedicel 2.8–3.9 mm (0.11–0.15 in) long. There are egg-shaped bracteoles 1.0–1.5 mm (0.039–0.059 in) long and 0.4–0.5 mm (0.016–0.020 in) wide on the pedicels. The floral tube is 0.8–1.5 mm (0.031–0.059 in) long and the sepals are membranous, the lobes 5.3–7.1 mm (0.21–0.28 in) long and 1.1–1.6 mm (0.043–0.063 in) wide. The standard petal is yellow-orange with red markings, 4.3–5.7 mm (0.17–0.22 in) long and 8.9–9.4 mm (0.35–0.37 in) wide, the wings yellow-orange with red markings, 5.0–5.8 mm (0.20–0.23 in) long, and the keel is red, 3.8–5 mm (0.15–0.20 in) long. The filaments of the stamens are green with a red tip, 2.7–5.6 mm (0.11–0.22 in) long. Flowering occurs from August to November, and the fruit is a woody, densely hairy, more or less spherical pod, 4.2–4.5 mm (0.17–0.18 in) long and 3.6–4.5 mm (0.14–0.18 in) wide. [2] [3]

Taxonomy

Jacksonia nematoclada was first formally described in 1876 by Ferdinand von Mueller in his Fragmenta Phytographiae Australiae from specimens collected near Mount Churchman by Jess Young. [2] [4] [5] The specific epithet (nematoclada) means 'thread-like branch'. [6]

Distribution and habitat

This species of Jacksonia grows in sandy or clayey soils on low rises and plains and is widespread in the Avon Wheatbelt, Coolgardie, Great Victoria Desert, Mallee and Murchison bioregions of inland Western Australia. [2] [3]

Conservation status

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

Related Research Articles

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<i>Lasiopetalum oppositifolium</i> Species of shrub

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<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 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 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 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 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 eremodendron is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a straggling shrub to small tree, the end branches egg-shaped, elliptic or oblong phylloclades with sharply-pointed teeth on the edges, the flowers yellow-orange with red markings and attached to teeth on phylloclades, and woody, densely-hairy pods.

<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 gracillima</i> Species of legume

Jacksonia gracillima is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a low, spreading, compact shrub with greyish-green branches, yellow to yellow-orange or orange-red flowers with red markings, and woody, densely-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 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 jackson is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is an erect, spindly, spreading shrub with dull green branches, the end branches sharply-pointed phylloclades, leaves reduced to egg-shaped scales, yellow-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.

References

  1. 1 2 "Jacksonia nematoclada". Australian Plant Census. Retrieved 22 December 2024.
  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): 561–563. doi:10.1071/SB06047.
  3. 1 2 3 "Jacksonia nematoclada". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Jacksonia nematoclada". Australian Plant Name Index. Retrieved 22 December 2024.
  5. ↑ von Mueller, Ferdinand (1876). Fragmenta Phytographiae Australiae. Vol. 10. Melbourne: Victorian Government Printer. pp. 50–51. Retrieved 22 December 2024.
  6. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 259. ISBN   9780958034180.
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