Acacia anfractuosa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a diffuse, spindly, weeping shrub or tree with widely spreading, linear or s-shaped phyllodes, spherical heads of 22 to 32 golden-yellow flowers, and linear pods up to 120 mm (4.7 in) long.
| Acacia anfractuosa | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Caesalpinioideae |
| Clade: | Mimosoid clade |
| Genus: | Acacia |
| Species: | A. anfractuosa
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| Binomial name | |
| Acacia anfractuosa | |
| |
| Occurrence data from AVH | |
| Synonyms[1] | |
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Racosperma anfractuosum (Maslin) Pedley | |
Description
editAcacia anfractuosa is a diffuse, spindly, weeping shrub or tree that typically grows to a height of 1.3–4.5 m (4 ft 3 in – 14 ft 9 in), its new shoots resinous. The phyllodes are widely spreading, linear or s-shaped, diamond-shaped to flat in cross-section, green to greyish-green with down-curved edges, mostly 80–170 mm (3.1–6.7 in) long and 1–2 mm (0.039–0.079 in) wide. The central vein and edge veins are yellowish. The flowers are borne in one or two spherical heads in axils on a peduncle 4–11 mm (0.16–0.43 in) long, each head 7–12 mm (0.28–0.47 in) long and 6–8 mm (0.24–0.31 in) in diameter, with 22 to 32 golden-yellow flowers. Flowering occurs from July to December and the fruit is a firmly papery pod up to 120 mm (4.7 in) long and 1.5–5.0 mm (0.059–0.197 in) wide and slightly constricted between the seeds. The seeds are linear to elliptic, glossy mottled brown, 4.5–5.0 mm (0.18–0.20 in) long with a white aril.[2][3][4][5][6]
Taxonomy
editAcacia anfractuosa was first formally described in 1976 by the botanist Bruce Maslin in the journal Nuytsia from specimens he collected 26 km (16 mi) east of Karalee Rock near Yellowdine in 1971.[5][7] This species is quite closely related to Acacia sciophanes and also similar in appearance to Acacia heteroneura and Acacia merinthophora.[2]
Distribution and habitat
editThis acacia is found in yellow sand in sandplain heath and is found from Bruce Rock and east to Boorabbin and Coolgardie in the Avon Wheatbelt and Coolgardie bioregions in the south-west of Western Australia.[5][6]
See also
editReferences
edit- ^ a b "Acacia anfractuosa". Australian Plant Census. Retrieved 20 September 2024.
- ^ a b "Acacia anfractuosa Maslin". Wattle - Acacias of Australia. Department of the Environment and Energy. Retrieved 17 April 2019.
- ^ "Acacia anfractuosa". World Wide Wattle. Retrieved 20 September 2024.
- ^ Maslin, Bruce R.; Cowan, Richard S. Kodela, Phillip G. (ed.). "Acacia anfractuosa". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 20 September 2024.
- ^ a b c Maslin, Bruce R. (1976). "Studies in the genus Acacia (Mimosaceae) - 5 - Miscellaneous new phyllodinous species". Telopea. 2 (2): 96–98. Retrieved 20 September 2024.
- ^ a b "Acacia anfractuosa". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ "Acacia anfractuosa". Australian Plant Names Index. Retrieved 20 September 2024.