Acacia blaxellii
| Blaxell's wattle | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Caesalpinioideae |
| Clade: | Mimosoid clade |
| Genus: | Acacia |
| Species: | A. blaxellii
|
| Binomial name | |
| Acacia blaxellii | |
| Synonyms[1] | |
|
Racosperma blaxelli (Maslin) Pedley | |
Acacia blaxellii, also known as Blaxell's wattle,[2] is a species of flowering plant in the family Fabaceae and is endemic to inland areas of the south-west of Western Australia. It is a spreading, dense shrub with narrowly oblong to oblong phyllodes, spherical heads of golden-yellow flowers, and thinly leathery, wavy to ring-shaped or S-shaped pods.
Description
[edit]Acacia blaxellii' is dense, spreading shrub that typically grows to a 0.3–1.2 m (1 ft 0 in – 3 ft 11 in) high and up to 2 m (6 ft 7 in) wide and has densely hairy branchlets. Its phyllodes are more or less erect, straight and narrowly oblong to oblong, thick and fleshy, 10–20 mm (0.39–0.79 in) long and 3–5 mm (0.12–0.20 in) wide and glabrous| except at the base. The flowers are borne in two spherical heads on a peduncle 7–22 mm (0.28–0.87 in) long, each head 3.5–4.5 mm (0.14–0.18 in) in diameter with 17 to 31 golden-yellow flowers. Flowering has been recorded from August to October, and the pods are glabrous, thinly leathery, wavy to ring-shaped or S-shaped up to 20 mm (0.79 in) long and 3.5–4.0 mm (0.14–0.16 in) wide, with broadly elliptic, glossy black seeds about 2 mm (0.079 in) long with a white, linear to club-shaped aril.[2][3][4][5]
Taxonomy
[edit]Acacia blaxellii was first formally described in 1999 by the botanist Bruce Maslin in the journal Nuytsia from specimens he collected 106 km (66 mi) south of Queen Victoria Rock on the road to Hyden.[4][6] The specific epithet (blaxellii) honours Don Blaxell, who discovered the species.
Distribution and habitat
[edit]This species of wattle grows in clay on flat land or in loam on low rocky hills, mainly between Frank Hann National Park and McDermid Rock about 100 km (62 mi) west of Norseman, but also near Hyden and Norseman, in the Coolgardie and Mallee bioregions in inland parts of the south-west of Western Australia.[4][5][2]
Conservation status
[edit]Acacia blaxellii is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.[5]
See also
[edit]References
[edit]- ^ a b "Acacia blaxellii". Australian Plant Census. Retrieved 26 April 2025.
- ^ a b c Bruce Maslin (2018). "Acacia blaxelli". Wattle Acacias of Australia. Department of Biodiversity, Conservation and Attractions. Retrieved 29 March 2019.
- ^ Maslin, Bruce R. Kodela, Phillip G. (ed.). "Acacia blaxellii". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 26 April 2025.
- ^ a b c Maslin, Bruce R. (1999). "Acacia miscellany 16. The taxonomy of fifty-five species of Acacia, primarily Western Australian, in section Phyllodineae (Leguminosae: Mimosoideae)". Nuytsia. 12 (3): 328–329. Retrieved 26 April 2025.
- ^ a b c "Acacia blaxellii". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ "Acacia blaxellii". APNI. Retrieved 26 April 2025.