Jacksonia lehmannii

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Jacksonia lehmannii
Jacksonia lehmannii.jpg
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. lehmannii
Binomial name
Jacksonia lehmannii
Synonyms [1]
  • Jacksonia lehmanniMeisn. orth. var.
  • Piptomeris lehmanni Greene orth. var.
  • Piptomeris lehmannii(Meisn.) Greene
Habit in the Australian National Botanic Gardens Jacksonia lehmanii.jpg
Habit in the Australian National Botanic Gardens

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.

Contents

Description

Jacksonia lehmannii is an erect to prostrate or spreading, spindly shrub that typically grows to 0.1–1.0 m (3.9 in – 3 ft 3.4 in) high and 0.5–1.5 m (1 ft 8 in – 4 ft 11 in) wide. Its branches are greyish-geen, with sharply-pointed side branches. Its leaves are reduced to dark brown, egg-shaped scales, 0.7–0.3 mm (0.028–0.012 in) long and 0.7–1.4 mm (0.028–0.055 in) wide. The flowers are scattered along the branches on a pedicel 6.5–8 mm (0.26–0.31 in) long, with narrowly egg-shaped bracteoles 0.8–1.3 mm (0.031–0.051 in) long on the upper part of the pedicels. The floral tube is 0.5–1.5 mm (0.020–0.059 in) long and the sepals are membranous, with lobes 8–11 mm (0.31–0.43 in) long and 0.9–2 mm (0.035–0.079 in) wide. The standard petal is yellowish-orange with a red "eye", 5.5–8.2 mm (0.22–0.32 in) long, the wings yellowish-orange with red markings and 6.5–8.6 mm (0.26–0.34 in) long, and the keel red, 7.2–8.9 mm (0.28–0.35 in) long. The stamens have deep red filaments 5.7–8.6 mm (0.22–0.34 in) long. Flowering occurs from August to December, and the fruit is a woody hairy, elliptical pod 8–11.7 mm (0.31–0.46 in) long and 3.6–6.7 mm (0.14–0.26 in) wide. [2] [3]

Taxonomy

Jacksonia lehmannii was first formally described in 1844 by Carl Meissner in Lehmann's Plantae Preissianae from specimens collected by James Drummond near the Canning River in 1839. [4] [5] The specific epithet (lehmannii) honours Lehmann. [6]

Distribution and habitat

This species of Jacksonia grows in shrubland or woodland in sandplains on sand over laterite in disjunct areas near Eneabba, between Maida Vale and Pinjarra, and south of Capel in the Geraldton Sandplains, Jarrah Forest and Swan Coastal Plain bioregions of south-western Western Australia. [2] [3]

Conservation status

Jacksonia lehmannii 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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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.

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<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.

References

  1. 1 2 "Jacksonia lehmannii". Australian Plant Census. Retrieved 26 July 2024.
  2. 1 2 Chappill, Jennifer A.; Wilkins, Carolyn F.; Crisp, Michael D. (2007). "Taxonomic revision of Jacksonia (Leguminosae: Mirbelieae)". Australian Systematic Botany. 20 (6): 572–574.
  3. 1 2 3 "Jacksonia lehmannii". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. "Jacksonia horrida". Australian Plant Name Index. Retrieved 26 July 2024.
  5. Meissner, Carl (1844). Lehmann, Johann G.C. (ed.). Plantae preissianae sive enumeratio plantarum quas in australasia occidentali et meridionali-occidentali annis 1838-1841 collegit Ludovicus Preiss. Hamburg: Sumptibus Meissneri. p. 46. Retrieved 26 July 2024.
  6. George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (4th ed.). Kardinya, WA: Four Gables Press. p. 237. ISBN   9780958034180.