Jacksonia jackson

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Jacksonia jackson
Status DECF P1.svg
Priority One — Poorly Known Taxa (DEC)
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. jackson
Binomial name
Jacksonia jackson

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.

Contents

Description

Jacksonia jackson is an erect, spindly, spreading shrub that typically grows up to 25–35 cm (9.8–13.8 in) high and 0.3–100 cm (0.12–39.37 in) wide. It has ribbed, flattened branches, the side branches sharply-pointed phylloclades, its leaves are reduced to egg-shaped, dark brown scales, 1.3–2.8 mm (0.051–0.110 in) long and 1.2–2.0 mm (0.047–0.079 in) wide. The flowers are arranged at the ends of main stems or on short side branches, in raceme-like clusters, each flower on a pedicel 1.3–1.6 mm (0.051–0.063 in) long, with egg-shaped bracteoles 1.2–2.7 mm (0.047–0.106 in) long and 0.65–0.85 mm (0.026–0.033 in) wide near the top of the pedicels. The floral tube is 1–2 mm (0.039–0.079 in) long and the sepals are membranous, with lobes 5.0–8.5 mm (0.20–0.33 in) long and 2.0–3.3 mm (0.079–0.130 in) wide. The standard petal is yellow-orange with a red "eye", 4–8 mm (0.16–0.31 in) long and 4.0–11.5 mm (0.16–0.45 in) deep, the wings yellow-orange with red markings, 5.7–6.2 mm (0.22–0.24 in) long, and the keel is yellow-orange with red markings, 5.5–5.7 mm (0.22–0.22 in) long. The stamens have pink filaments with a white tip and are 3.9–7 mm (0.15–0.28 in) long. Flowering occurs from July to November, and the fruit is a woody, densely hairy pod 3.5–5.0 mm (0.14–0.20 in) long and 2.7–2.8 mm (0.11–0.11 in) wide. [2] [3]

Taxonomy

Jacksonia jackson was first formally described in 2007 by Jennifer Anne Chappill in Australian Systematic Botany from specimens collected near an abandoned mine near Mount Jackson in 1991. [2] [4] The specific epithet (jackson) refers to the type location. [5]

Distribution and habitat

This species of Jacksonia grows in woodland near the type location in the Coolgardie bioregion of inland Western Australia. [2] [3]

Conservation status

Jacksonia jackson is listed as "Priority One" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, meaning that it is known from only one or a few locations where it is potentially at risk. [6]

Related Research Articles

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

Jacksonia lehmannii is a 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 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 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.

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.

<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.

<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.

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.

Jacksonia foliosa is a species of flowering plant in the family Fabaceae and is endemic to the south west of Western Australia. It is a low-lying or erect shrub with sharply pointed end branches, yellow-orange flowers with red markings, and woody, 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 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 intricata is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is a domed, tangled shrub with copper-coloured branches when fresh, the end branches sharply-pointed, the leaves reduced to scales, yellow flowers with red markings, and woody, densely hairy pods.

References

  1. ↑ "Jacksonia jackson". Australian Plant Census. Retrieved 1 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): 555.
  3. 1 2 "Jacksonia jackson". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Jacksonia jackson". Australian Plant Name Index. Retrieved 1 December 2024.
  5. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 228. ISBN   9780958034180.
  6. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Biodiversity, Conservation and Attractions. Retrieved 1 December 2024.
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