Acacia acuaria is a species of flowering plant in the family Fabaceae and is endemic to the south-western of Western Australia. It is a rounded or diffuse to spreading, prickly shrub with sharply pointed, rigid, needle-shaped phyllodes, flowers arranged in more or less spherical heads of 14 to 23 flowers, and strongly curved or openly coiled pods up to 50 mm (2.0 in) long.

Acacia acuaria
In the Australian National Botanic Gardens
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Acacia
Species:
A. acuaria
Binomial name
Acacia acuaria
Occurrence data from AVH
Synonyms[1]

Racosperma acuarium (W.Fitzg.) Pedley

Habit

Description

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Acacia acuaria is a rounded or diffuse to spreading shrub that typically grows to a height of 0.6–2 m (2 ft 0 in – 6 ft 7 in) and has more or less spiny branchlets. Its phyllodes are needle-shaped, circular in cross-section, usually glabrous, rigid and sharply pointed, 6–20 mm (0.24–0.79 in) long and 0.5–2 mm (0.020–0.079 in) wide with fused stipules that fall as the phyllodes develop. The flowers are borne in racemes on a peduncle usually 4–12 mm (0.16–0.47 in) long, the heads more or less spherical, with 14 to 23 golden-yellow flowers. Flowering occurs from June to September, and the pods are strongly curved to coiled, up to 50 mm (2.0 in) long and 3.5–5 mm (0.14–0.20 in) wide, dark brown to black, containing elliptic seeds about 3.0 mm (0.12 in) long with an aril about as long as the seed.[2][3][4]

Taxonomy

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Acacia acuaria was first formally described in 1999 by William Vincent Fitzgerald in the Journal of the West Australian Natural History Society, from specimens he collected in 1903.[5][6] The specific epithet (acuaria) means "needle-possessing".[7]

Distribution

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Acacia acuaria is native to an area in the Mid West and Wheatbelt regions of Western Australia from around Northampton in the north to around Yilgarn in the south east where it is found on sandplains, rises and around salt lakes growing in a variety of soil types[8] as a part of Eucalyptus woodland or mallee scrub communities.[9]

See also

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References

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  1. ^ a b "Acacia acuaria". Australian Plant Census. Retrieved 1 May 2024.
  2. ^ "Acacia acuaria". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. ^ "Acacia acuaria". WorldWideWattle. Department of Parks and Wildlife. Retrieved 16 January 2024.
  4. ^ "Acacia acuaria". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 8 January 2024.
  5. ^ "Acacia acuaria'". APNI. Retrieved 16 January 2024.
  6. ^ Fitzgerald, William Vincent (1903). "Additions to the West Australian Flora". Journal of the West Australian Natural History Society. 2 (1): 7. Retrieved 16 January 2024.
  7. ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 127. ISBN 9780958034180.
  8. ^ "Acacia acuaria". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  9. ^ "Acacia acuaria". World Wide Wattle. Western Australian Herbarium. Retrieved 9 May 2019.