Biology:Acacia ancistrophylla

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Short description: Species of legume

Acacia ancistrophylla
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Acacia
Species:
A. ancistrophylla
Binomial name
Acacia ancistrophylla
C.R.P.Andrews[1]
Occurrence data from AVH
Synonyms[1]

Racosperma ancistrophyllum (C.R.P.Andrews) Pedley

Acacia ancistrophylla is a species of flowering plant in the family Fabaceae and is endemic to southern Australia. It is a dense, rounded shrub, with lance-shaped phyllodes with the narrower end towards the base, spherical heads of yellow flowers, and linear pods up to 40 mm (1.6 in) long.

Description

Acacia ancistrophylla is a dense, rounded shrub that typically grows up to 0.4–2.5 m (1 ft 4 in–8 ft 2 in) high and 3–6 m (9.8–19.7 ft) wide and has grey bark and glabrous or sparsely hairy branchlets. The phyllodes are lance-shaped or narrowly lance-shaped with the narrower end towards the base, 12–48 mm (0.47–1.89 in) long, 1.5–5 mm (0.059–0.197 in) wide and leathery, with many closely parallel veins. The flowers are arranged in 2 spherical heads in axils, 6–7 mm (0.24–0.28 in) in diameter, on peduncles 1.5–5.5 mm (0.059–0.217 in) long. Each head has 11 to 23 mid- to dark-golden yellow flowers. Flowering time depends on subspecies, and the pods are linear, up to 40 mm (1.6 in) long and 2.5–3.0 mm (0.098–0.118 in) wide and papery to thinly leathery. The seeds are dull tan or dark brown 3.0–3.5 mm (0.12–0.14 in) long and 1.0–2.2 mm (0.039–0.087 in) wide.[2][3][4][5][6]

Taxonomy

Acacia ancistrophylla was first formally described in 1904 by the botanist Cecil Andrews in the Journal of the West Australian Natural History Society from specimens he collected near Dundas in 1903.[7][8] The specific epithet (ancistrophylla) means 'leaves barbed with small hooks'.[9]

In 1995, Richard Sumner Cowan and Bruce Maslin described 3 varieties of A. ancistrophylla and the names are accepted by the Australian Plant Census:

  • Acacia ancistrophylla C.R.P.Andrews var. ancistrophylla,[10] flowers in August and September.[2][11]
  • Acacia ancistrophylla var. lissophylla (J.M.Black) R.S.Cowan & Maslin[12] (previously known as Acacia sclerophylla var. lissophylla)[13] flowers from August to October.[2][14][15]
  • Acacia ancistrophylla var. perarcuata R.S.Cowan & Maslin[16] flowers in August and September.[2][17]

Cowan and Maslin described the differences among the three varieties as "subtle and difficult to express".

Distribution

Variety ancistrophylla is common to very common in woodland and mallee communities on flats, hillsides and ridges between Wubin, Newdegate and Cundeelee and near Salmon Gums.[2][11] Variety lissophylla is known from three collections in Western Australia, in scattered locations from Ceduna to Pine Point in South Australia, and in scattered places between Lake Hindmarsh and Swan Hill in Victoria.[2][11][15] Variety perarcuata grows in low woodland within a radius of 50–70 km (31–43 mi) of Merredin in Western Australia.

Conservation status

Acacia ancistrophylla var. ancistrophylla is also listed as "not threatened",[11] but var. lissophylla is listed as "Priority Two",[11] meaning that is poorly known and from one or a few locations, and var. perarcuata as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.[17][18] Variety lissophylla is listed as "endangered" under the Victorian Government Flora and Fauna Guarantee Act.[15]

See also

References

  1. ↑ 1.0 1.1 "Acacia ancistrophylla". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/58425. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Cowan, Richard S.; Maslin, Bruce R. (1995). "Five groups of microneurous species of Acacia (Leguminosae: Mimosoideae: section Plurinerves), mostly from Western Australia.". Nuytsia 10 (2): 224–228. doi:10.58828/nuy00232. https://www.biodiversitylibrary.org/item/225398#page/88/mode/1up. Retrieved 16 August 2024. 
  3. ↑ Cowan, Richard S.; Maslin, Bruce R.. "Acacia ancistrophylla". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra.. https://profiles.ala.org.au/opus/foa/profile/Acacia%20ancistrophylla. 
  4. ↑ "Acacia ancistrophylla". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/3215. 
  5. ↑ "Acacia ancistrophylla". World Wide Wattle. Western Australian Herbarium. http://worldwidewattle.com/speciesgallery/ancistrophylla.php. Retrieved 4 October 2020. 
  6. ↑ "Acacia ancistrophylla". State Herbarium of South Australia. http://www.flora.sa.gov.au/cgi-bin/speciesfacts_display.cgi?form=speciesfacts&name=Acacia_ancistrophylla. 
  7. ↑ "Acacia ancistrophylla". Australian Plant Name Index. https://biodiversity.org.au/nsl/services/rest/instance/apni/462300. 
  8. ↑ Andrews, Cecil R. P. (1904). "Additions to the West Australian Flora". Journal of the West Australian Natural History Society (Perth: V.K. Jones) 2 (1): 40–41. https://biodiversitylibrary.org/page/46105444. 
  9. ↑ George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (4th ed.). Kardinya, WA: Four Gables Press. p. 132. ISBN 9780958034180. 
  10. ↑ "Acacia ancistrophylla var. ancistrophylla". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/141543. 
  11. ↑ 11.0 11.1 11.2 11.3 11.4 "Acacia ancistrophylla var. ancistrophylla". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/14584. 
  12. ↑ "Acacia ancistrophylla var. lissophylla". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/141545. 
  13. ↑ "Acacia sclerophylla var. lissophylla". Australian Plant Name Index. https://biodiversity.org.au/nsl/services/rest/instance/apni/480397. 
  14. ↑ "Acacia ancistrophylla var. lissophylla". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/14585. 
  15. ↑ 15.0 15.1 15.2 Entwisle, Timothy J.; Maslin, Bruce R.; Cowan, Richard S.; Court, Arthur B.. "Acacia ancistrophylla var. lissophylla". Royal Botanic Gardens Victoria. https://vicflora.rbg.vic.gov.au/flora/taxon/07ca7c9c-95b7-49f3-83a8-f1267d79a996. 
  16. ↑ "Acacia ancistrophylla var. perarcuata". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/141511. 
  17. ↑ 17.0 17.1 "Acacia ancistrophylla var. perarcuata". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/14048. 
  18. ↑ "Conservation codes for Western Australian Flora and Fauna". Government of Western Australia Biodiversity, Conservation and Attractions. https://www.epa.wa.gov.au/sites/default/files/Referral_Documentation/DWERDT480152%20%20App%206%20-%202020%20Western%20Australian%20and%20Commonwealth%20of%20Australia%20Conservation%20Codes%282%29.pdf. Retrieved 29 April 2024. 

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