Acacia inaequiloba

Acacia inaequiloba
Scientific classification Edit this 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. inaequiloba
Binomial name
Acacia inaequiloba
Occurrence data from AVH
Synonyms[1]

Racosperma inaequilobium (W.Fitzg.) Pedley

Acacia inaequiloba is a species of flowering plant in the family Fabaceae and is endemic to inland areas of Western Australia. It is a compact spiny shrub with many stems, obliquely egg-shaped to elliptic phyllodes, spherical heads of light golden yellow flowers, and rounded, thinly leathery to crusty pods.

Description

Acacia inaequiloba is a compact spiny, multistemmed shrub that typically grows to a height of 0.3 m (1 ft 0 in). Its branchlets are more or less straight, erect, rigid, often covered with a powdery bloom but usually glabrous. The phyllodes are variably shaped, often asymmetrically triangular with the narrower end towards the base, to wedge-shaped or very narrowly oblong to elliptic, 10–45 mm (0.39–1.77 in) long and 2–10 mm (0.079–0.394 in) wide, sharply pointed, glaucous and usually glabrous. The midrib is near the upper edge of the phyllode and the side veins are obscure.[2][3][4]

The flowers are borne in a single spherical to oblong head in leaf axils on a peduncle usually 5–10 mm (0.20–0.39 in) long, each head with 12 to 21 light- to mid-golden yellow flowers. Flowering occurs from July to September, and the pods are wavy, prominently rounded over the seeds, up to 75 mm (3.0 in) long and 4–5 mm (0.16–0.20 in) wide and thinly leathery to crusty and glabrous. The seeds are egg-shaped to elliptic, mottled black and brown, about 3 mm (0.12 in) long with a conspicuous aril.[2][3][4]

Taxonomy

Acacia inaequiloba was first formally described in 1912 by William Vincent Fitzgerald in the Journal of Botany, British and Foreign from specimens collected by Richard Helms in the Great Victoria Desert during the Elder Exploring Expedition.[5][6] The specific epithet (inaequiloba) means unequal-lobed, referring to the sepals.[7]

Distribution

This species of wattle occurs in the Southern Cross-Coolgardie and Queen Victoria Spring-Streich Mound districts (the latter, about 200 km (120 mi) to the north east of Kalgoorlie), where it grows on sandplains in sandy lateritic soils in the Avon Wheatbelt, Coolgardie, Great Victoria Desert and Murchison bioregions of inland Western Australia.[2][4]

Conservation status

Acacia inaequiloba is listed as 'not threatened' by the Western Australian Government Department of Biodiversity, Conservation and Attractions.[4]

See also

References

  1. 1 2 "Acacia inaequiloba". Australian Plant Census. Retrieved 8 June 2026.
  2. 1 2 3 Maslin, Bruce R. "Acacia inaequiloba". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 8 June 2026.
  3. 1 2 "Acacia inaequiloba". Wattle - Acacias of Australia. Lucid Central. Retrieved 19 June 2020.
  4. 1 2 3 4 "Acacia inaequiloba". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. ↑ Fitzgerald, William V. (1912). "New West Australian Plants". Journal of Botany, British and Foreign. 50: 18–19. Retrieved 8 June 2026.
  6. ↑ "Acacia inaequiloba". Australian Plant Name Index. Retrieved 8 June 2026.
  7. ↑ George, Alex S.; Sharr, Francis A. (2023). Western Australian Plant Names and Their Meanings - A Glossary (fifth ed.). Kardinya: Four Gables Press. pp. 227–228. ISBN 9780645629538.