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| Jacksonia pendens | |
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| Near the type location | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Jacksonia |
| Species: | J. pendens |
| Binomial name | |
| Jacksonia pendens Chappill | |
Jacksonia pendens is a species of flowering plant in the family Fabaceae and is endemic to the north of the Northern Territory. It is an erect, densely branching shrub, the end branches sharply-pointed phylloclades, the leaves reduced to narrowly egg-shaped scale leaves, the flowers yellow-orange, and the fruit a woody, densely hairy pod.
Description
Jacksonia pendens is an erect, densely branched shrub that typically grows up to 1.2–4 m (3 ft 11 in – 13 ft 1 in) high and 1–2 m (3 ft 3 in – 6 ft 7 in) wide, its branches green or greyish-green, the end branches densely-hairy, sharply-pointed phylloclades. Its leaves are reduced to egg-shaped or narrowly egg-shaped, sharply-pointed, dark brown scales, 0.5–1.5 mm (0.020–0.059 in) long, 0.35–1.0 mm (0.014–0.039 in) wide. The flowers are arranged near the tips of the branches, each flower on a pedicel 1.6–2.3 mm (0.063–0.091 in) long. There are egg-shaped bracteoles 0.7–1.2 mm (0.028–0.047 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 ribbed. The sepals are membranous, the lobes 1.7–2.3 mm (0.067–0.091 in) long and 1.4–1.7 mm (0.055–0.067 in) wide and fused at the base for 3.2–3.7 mm (0.13–0.15 in). The petals are yellow-orange, the standard petal 4.7–5.4 mm (0.19–0.21 in) long and 5–7 mm (0.20–0.28 in) deep, the wings 4.0–4.7 mm (0.16–0.19 in) long, and the keel 4.0–4.7 mm (0.16–0.19 in) long. The stamens have green filaments 3.1–5.3 mm (0.12–0.21 in) long. Flowering occurs from April to October, and the fruit is a woody, elliptic pod, 4.3–5.5 mm (0.17–0.22 in) long, 2.3–2.5 mm (0.091–0.098 in) wide and densely covered with white hairs.
Taxonomy
Jacksonia pendens was first formally described in 2007 by Jennifer Anne Chappill in Australian Systematic Botany from specimens collected 14.9 km (9.3 mi) from Pine Creek Road in 1992. The specific epithet (pendens) means 'hanging down'.
Distribution and habitat
This species of Jacksonia grows in woodland over laterite or sandstone in the Arnhem Plateau, Darwin Coastal and Pine Creek bioregions in the north of the Northern Territory.
Conservation status
Jacksonia pendens is listed as of "least concern" under the Territory Parks and Wildlife Conservation Act.
References
- "Jacksonia pendens". Australian Plant Census. Retrieved 3 January 2025.
- ^ Chappill, Jennifer A.; Wilkins, Carolyn F.; Crisp, Michael D. (2007). "Taxonomic revision of Jacksonia (Leguminosae: Mirbelieae)". Australian Systematic Botany. 20 (6): 517–519.
- "Jacksonia pendens". Australian Plant Name Index. Retrieved 3 January 2025.
- George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (4th ed.). Kardinya, WA: Four Gables Press. p. 273. ISBN 9780958034180.
- ^ "Jacksonia pendens". Northern Territory Government. Retrieved 3 January 2025.
| Taxon identifiers | |
|---|---|
| Jacksonia flexuosa | |