Acacia gibbosa
| Acacia gibbosa | |
|---|---|
| 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. gibbosa
|
| Binomial name | |
| Acacia gibbosa | |
| Occurrence data from AVH | |
| Synonyms[1] | |
| |
Acacia gibbosa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a dense, rounded shrub or tree with glabrous branchlets, narrowly linear phyllodes, oblong to cylindrical head of golden yellow flowers and linear, thinly firmly papery pods.
Description
Acacia gibbosa is rounded shrub or tree that typically grows to a height of 1–3 m (3 ft 3 in – 9 ft 10 in) and has glabrous branchlets. Its phyllodes are narrowly linear, straight to slightly curved and terete, 40–95 mm (1.6–3.7 in) long, 0.8–1.5 mm (0.031–0.059 in) wide, green to grey-green and glabrous. The flowers are borne in pairs of oblong or short cylindrical heads on peduncles 1.5–4 mm (0.059–0.157 in) long, each head 6–8 mm (0.24–0.31 in) long and 4.0–4.5 mm (0.16–0.18 in) in diameter with 22 to 27 golden yellow flowers. Flowering occurs in August and September, and the pods are linear, straight, up to 65 mm (2.6 in) long, 2.0–2.5 mm (0.079–0.098 in) wide, glabrous and firmly papery. The seeds are narrowly oblong, 2.8–3.0 mm (0.11–0.12 in) long and glossy black with a crested aril.[2][3][4][5]
Taxonomy
Acacia gibbosa was first formally described in 1995 by the botanists Richard Sumner Cowan and Bruce Maslin in the journal Nuytsia from specimens collected by Maslin 4.5 mi (7.2 km) north-west of Southern Cross towards Bullfinch in 1971.[2][6] The specific epithet (gibbosa) means 'hunch-backed', and refers to the peduncular bracts that have a gibbosity on the upper side.[3]
Distribution and habitat
This species of wattle grows in low-lying areas and on undulating plains in woodland, scrub and shrubland between Koorda and Kellerberrin and east to the Coolgardie area and Dundas in the Avon Wheatbelt, Coolgardie, Geraldton Sandplains and Mallee bioregions of south-western Western Australia.[7]
Conservation status
Acacia gibbosa is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.[7]
See also
References
- ^ a b "Acacia gibbosa". Australian Plant Census. Retrieved 25 January 2026.
- ^ a b Cowan, Richard S.; Maslin, Bruce R. (1995). "Acacia Miscellany 10. New taxa and notes on previously described taxa of Acacia, mostly section Juliflorae (Leguminosae: Mimosoideae), in Western Australia". Nuytsia. 10 (1): 28–29. Retrieved 25 January 2026.
- ^ a b Cowan, Richard S.; Maslin, Bruce R. Kodela, Phillip G. (ed.). "Acacia gibbosa". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 25 January 2026.
- ^ "Acacia gibbosa". World Wide Wattle. Western Australian Herbarium. Retrieved 7 November 2018.
- ^ "Acacia gibbosa". Australian Biological Resources Study. Retrieved 25 January 2026.
- ^ "Acacia gibbosa". Australian Plant Name Index. Retrieved 25 January 2026.
- ^ a b "Acacia gibbosa". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.