Acacia fagonioides

Acacia fagonioides
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. fagonioides
Binomial name
Acacia fagonioides
Occurrence data from AVH
Synonyms[1]
  • Acacia pulchella var. fagonioides (Benth.) J.F.Macbr.
  • Racosperma fagonioides (Benth.) Pedley

Acacia fagonioides is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an intricately branched, spiny shrub with bipinnate leaves, spherical heads of yellow flowers and glabrous pods.

Description

Acacia fagonioides is an intricately branched shrub that typically grows to a height of 20–50 cm (7.9–19.7 in) and has spines 3–18 mm (0.12–0.71 in) long at the base of the leaves. The leaves are bipinnate with one pair of pinnae 2–5 mm (0.079–0.197 in) long, each pinna with two to four pairs of narrowly egg-shaped to narrowly oblong pinnules 2–5 mm (0.079–0.197 in) long and 1–2 mm (0.039–0.079 in) wide. The leaves are glaucous to subglaucous and glabrous to subglabrous and lack a petiole, but are on a stalk about 0.5 mm (0.020 in) long. The flowers are borne in spherical heads on the upper half of the axillary spines on a hairy peduncle 4–8 mm (0.16–0.31 in) long. Each head has 13 to 25 yellow flowers. Flowering occurs in June and July, and the pods are 30–80 mm (1.2–3.1 in) long, 7–12 mm (0.28–0.47 in) wide, glabrous and covered with a thin, powdery bloom. The seeds are elliptic to circular, inflated, 3–4 mm (0.12–0.16 in) long.[2][3][4][5]

Taxonomy

Acacia fagonioides was first formally described in 1842 in Hooker's London Journal of Botany from specimens collected in the Swan River Colony by James Drummond.[6][7] The specific epithet (fagonioides) means 'Fagonia-like'.[8]

This species and Acacia epacantha are unique in the Acacia pulchella group of wattles in having their flowers borne on axillary spines.[3]

Distribution and habitat

This species of wattle grows in sandy heath near Eneabba and in lateritic soil in marri (Corymbia calophylla) forest at Toodyay and has a disjunct distribution near Eneabba, Cervantes and Toodyay, in the Avon Wheatbelt, Geraldton Sandplains and Jarrah Forest bioregions of south-western Western Australia.[2][5]

Conservation status

Acacia fagonioides is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.[5]

See also

References

  1. ^ a b "Acacia fagonioides". Australian Plant Census. Retrieved 14 December 2025.
  2. ^ a b Maslin, Bruce R. "Acacia fagonioides". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 15 December 2025.
  3. ^ a b "Acacia fagonioides Benth". Wattle - Acacias of Australia. Lucid Central. Retrieved 5 February 2021.
  4. ^ "Acacia fagonioides". World Wide Wattle. Retrieved 15 December 2025.
  5. ^ a b c "Acacia fagonioides". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  6. ^ "Acacia fagonioides". APNI. Retrieved 15 December 2025.
  7. ^ Bentham, George (1842). "Notes on Mimoseae, with a synopsis of species". London Journal of Botany. 1: 377. Retrieved 15 December 2025.
  8. ^ George, Alex S.; Sharr, Francis A. (2023). Western Australian Plant Names and Their Meanings - A Glossary (fifth ed.). Kardinya: Four Gables Press. p. 201. ISBN 9780645629538.