Acacia chrysochaeta

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Acacia chrysochaeta
Acacia chrysochaeta.jpg
Near the Gibb River Road
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Acacia
Species:
A. chrysochaeta
Binomial name
Acacia chrysochaeta
Acacia chrysochaetaDistMap186.png
Occurrence data from AVH
Synonyms [1]

Racosperma chrysochaetum(Maslin) Pedley

Acacia chrysochaeta is a species of flowering plant in the family Fabaceae and is endemic to the north of Western Australia. It is an erect, spindly shrub with hairy branchlets, linear, flat phyllodes, cylindrical spikes of hairy, pale golden yellow flowers that turn white as they age, and hairy, narrowly oblong pods.

Contents

Description

Acacia chrysochaeta is an erect, spindly shrub that typically grows to a height of up to 1.5 m (4 ft 11 in), its branchlets brown with yellowish tips. Its phyllodes are linear, flat, 20–45 mm (0.79–1.77 in) long, 2–3 mm (0.079–0.118 in) wide and hairy with one prominent vein and closely pressed against the stems. The flowers are pale golden yellow at first, later white, borne in densely-packed, cylindrical spikes 25–30 mm (0.98–1.18 in) long and covered with woolly hairs. Flowering has been observed from May to June and in November. The pods are narrowly oblong, straight to shallowly curved, 45–60 mm (1.8–2.4 in) long and 7–10 mm (0.28–0.39 in) wide and densely covered with golden hairs that turn white with age. The seeds are black, more or less oblong, 4.5–5.0 mm (0.18–0.20 in) long. [2] [3] [4] [5]

Taxonomy

Acacia chrysochaeta was first formally described in 1983 by Bruce Maslin from specimens collected near the Gibb River homestead by Norman Byrnes in 1971. [2] [6] The specific epithet (chrysochaeta) means 'golden long hairs', referring to the flowers and young pods. [7]

Distribution

This species of wattle grows in eucalypt savanna with annual sorghum and sandy alluvium near watercourses on the Gibb River and Karungie stations in the Central Kimberley, Northern Kimberley and Victoria Bonaparte bioregions of northern Western Australia. [3] [4] [8]

Conservation status

Acacia chrysochaeta is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions. [8]

See also

References

  1. 1 2 "Acacia chrysochaeta". Australian Plant Census. Retrieved 27 June 2025.
  2. 1 2 Maslin, Bruce R. (1983). "Studies in the genus Acacia (Leguminosae: Mimosoideae) - 13. Four new species from north-western Australia". Nuytsia. 4 (3): 367–370. doi:10.58828/nuy00083 . Retrieved 27 June 2025.
  3. 1 2 Tindale, Mary D.; Kodela, Phillip G. Kodela, Phillip G. (ed.). "Acacia chrysochaeta". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 27 June 2025.
  4. 1 2 "Acacia chrysochaeta". WorldWideWattle. Western Australian Herbarium . Retrieved 27 March 2020.
  5. ↑ "Acacia chrysochaeta". Wattle - Acacias of Australia. Lucid Central. Retrieved 27 June 2025.
  6. ↑ "Acacia chrysochaeta". APNI. Retrieved 27 June 2025.
  7. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 163. ISBN   9780958034180.
  8. 1 2 "Acacia chrysochaeta". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
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