Acacia lacertensis
| Acacia lacertensis | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Caesalpinioideae |
| Clade: | Mimosoid clade |
| Genus: | Acacia |
| Species: | A. lacertensis |
| Binomial name | |
| Acacia lacertensis | |
 | |
| Occurrence data from AVH | |
| Synonyms[1] | |
|
Racosperma lacertense (Pedley) Pedley | |
Acacia lacertensis is a species of flowering plant in the family Fabaceae and is endemic to the north of the Northern Territory, Australia. It is a slender shrub or tree, with straight or shallowly s-shaped, sometimes slightly down-curved phyllodes, narrowed at both ends, spikes of golden yellow flowers and linear, more or less straight, glabrous pods.
Description
Acacia lacertensis is a slender shrub or tree that typically grows to a height of up to 8 m (26 ft) with a sparse canopy and branchlets that are angular at the extremities and sometimes have stout, glabrous branchlets, often lightly covered with a powdery bloom. The phyllodes are straight or slightly s-shaped, narrowed at both ends, sometimes slightly down-curved, 100–170 mm (3.9–6.7 in) long and 10–25 mm (0.39–0.98 in) wide or up to 40 mm (1.6 in) wide on juvenile plants. The phyllodes have many longitudinal veins with two or three more prominent than the rest, and a gland 1–5 mm (0.039–0.197 in) above the pulvinus. The pulvinus is 3–7 mm (0.12–0.28 in) long. The flowers are golden yellow and borne in a raceme up to 1.5 mm (0.059 in) long of loosely flowered spikes 4–6.5 mm (0.16–0.26 in) long on glabrous peduncles 5–10 mm (0.20–0.39 in) long. Flowering occurs in June and July, and the pods are linear, more or less straight and glabrous, 80–90 mm (3.1–3.5 in) long, 3–4 mm (0.12–0.16 in) wide and convex over the seeds. The seeds are oblong, 3.8–4.5 mm (0.15–0.18 in) long, 1.7–2.3 mm (0.067–0.091 in) wide with a cup-shaped aril on the end.[2][3][4][5]
Taxonomy
Acacia lacertensis was first formally described by Leslie Pedley in the journal Austrobaileya from specimens collected near Narbalek in the Northern Territory.[2][6] The specific epithet (lacertensis) means 'from the lizard', an indirect reference to the Alligator River where this species occurs.[2]
Distribution and habitat
This species of wattle grows on the sandy banks of watercourses on the East Alligator River and its tributaries on the western and northern margins of the west Arnhemland sandstone plateau.[2][4][7]
See also
References
- 1 2 "Acacia lacertensis". Australian Plant Census. Retrieved 11 July 2026.
- 1 2 3 4 Pedley, Leslie (1999). "Notes on Acacia (Leguminosae: Mimosoideae) chiefly from northern Australia". Austrobaileya. 5 (2): 316–317. Retrieved 11 July 2026.
- ↑ "Acacia lacertensis". World Wide Wattle. Western Australian Herbarium. Retrieved 22 May 2019.
- 1 2 Pedley, Leslie. Maslin, Bruce R. (ed.). "Acacia lacertensis". Australian Biological Resources Study. Retrieved 11 July 2026.
- ↑ Pedley, Leslie; Maslin, Bruce R. Kodela, Phillip G. (ed.). "Acacia lacertensis". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 11 July 2026.
- ↑ "Acacia lacertensis". Australian Plant Name Index. Retrieved 11 July 2026.
- ↑ "Acacia lacertensis". Northern Territory Government. Retrieved 11 July 2026.