Acacia forrestiana

Forrests's wattle
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. forrestiana
Binomial name
Acacia forrestiana
Occurrence data from AVH
Synonyms[2]

Racosperma forrestianum (E.Pritz.) Pedley

Acacia forrestiana, commonly known as Forrest's wattle,[3] is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is an erect shrub with ascending to erect, triangular phyllodes with the narrower end towards the base, spherical heads of pale yellow flowers and flat, oblong, leathery pods.

Description

Acacia forrestiana is an erect shrub that typically grows to a height of 0.4–1 m (1 ft 4 in – 3 ft 3 in) and has branchlets with soft hairs. The phyllodes are somewhat crowded, ascending to erect, triangular with the narrower end towards the base, 10–20 mm (0.39–0.79 in) long, 5–10 mm (0.20–0.39 in) wide, sharply pointed and leathery. There are erect, bristly stipules 3–5 mm (0.12–0.20 in) long at the base of the phyllodes. The flowers are borne in spherical heads in axils on a peduncle 9–13 mm (0.35–0.51 in) long, each head with 15 to 20 pale yellow flowers. Flowering occurs in November and December, and the pods are oblong, flat, about 15 mm (0.59 in) long and 6 mm (0.24 in) wide, leathery, reddish-brown and striated.[3][4][5][6]

Taxonomy

Acacia forrestiana was first formally described in 1904 by the botanist Ernst Georg Pritzel in Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie from specimens collected near Dandaragan.[7][8] The specific epithet (forrestiana) honours John Forrest.[9]

This wattle is closely related to Acacia huegelii which is found further south and has a different phyllode shape.[1]

Distribution and habitat

This species of wattle is restricted to the Hill River district where it often grows in rocky or lateritic clay on the slopes of gullies, on hills or breakaways in heath or low woodland in the Geraldton Sandplains and Swan Coastal Plain bioregions of south-western Western Australia between Coorow and Dandaragan.[6] It often grows with an overstorey of Eucalyptus wandoo and Eucalyptus calophylla with an understorey including Hakea lissocarpha and other species of Grevillea, Acacia, Isopogon, Calothamnus and Melaleuca.[1]

Conservation status

Acacia forrestiana is listed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the Western Australian Government Biodiversity Conservation Act 2016.[1]

See also

References

  1. ^ a b c d "Acacia forrestiana — Forrest's Wattle". Species Profile and Threats Database. Department of the Environment and Energy. Retrieved 23 January 2019.
  2. ^ a b "Acacia forrestiana". Australian Plant Census. Retrieved 14 January 2026.
  3. ^ a b Maslin, Bruce R. Orchard, Anthony E. (ed.). "Acacia forrestiana". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 14 January 2026.
  4. ^ "Acacia forrestiana". World Wide Wattle. Western Australian Herbarium. Retrieved 23 January 2019.
  5. ^ "Acacia forrestiana". Australian Biological Resources Study. Retrieved 14 January 2026.
  6. ^ a b "Acacia forrestiana". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  7. ^ "Acacia forrestiana". Australian Plant Name Index. Retrieved 14 January 2026.
  8. ^ Pritzel, Ernst G. (1904). "Fragmenta Phytographiae Australiae occidentalis. Beitrage zur Kenntnis der Pflanzen Westaustraliens, ihrer Verbreitung und ihrer Lebensverhaltnisse". Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie. 35 (2–3): 298. Retrieved 14 January 2026.
  9. ^ George, Alex S.; Sharr, Francis A. (2023). Western Australian Plant Names and Their Meanings - A Glossary (fifth ed.). Kardinya: Four Gables Press. p. 206. ISBN 9780645629538.