Acacia ampliata

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Acacia ampliata
Status DECF P1.svg
Priority One — Poorly Known Taxa (DEC)
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. ampliata
Binomial name
Acacia ampliata
Acacia ampliataDistMap36.png
Occurrence data from AVH
Synonyms [1]

Racosperma ampliatum(R.S.Cowan & Maslin) Pedley

Acacia ampliata is a species of flowering plant in the family Fabaceae and is endemic to a restricted area in the south-west of Western Australia. It is a shrub or small tree with hairy branchlets, linear phyllodes, golden-coloured flowers arranged in oblong to short-cylindrical heads, and linear pods up to 110 mm (4.3 in) long.

Contents

Description

Acacia ampliata is shrub or small tree that typically grows to a height of 2–5 m (6 ft 7 in – 16 ft 5 in) and has finely fissured bark. The phyllodes are ascending to erect, linear, 80–190 mm (3.1–7.5 in) long, 3–6 mm (0.12–0.24 in) wide with a prominent central vein and many closely parallel secondary veins. The flowers are golden-coloured, arranged in 1 or 2 oblong to short-cylindrical heads 6–12 mm (0.24–0.47 in) long, 7–8 mm (0.28–0.31 in) wide, on a peduncle 3.5–9 mm (0.14–0.35 in) long and with many flowers. Flowering occurs from about April to August or from October to December, and the pod is linear, leathery to crust-like, up to 110 mm (4.3 in) long, 5–6 mm (0.20–0.24 in) wide and slightly constricted between the seeds. The seeds are shiny, dark brownish-black, and 4.5–6 mm (0.18–0.24 in) long. [2] [3] [4] [5]

Taxonomy

Acacia ampliata was first formally described in the journal Nuytsia from specimens collected by Maslin, 5 km (3.1 mi) south of Mullewa on the road to Mingenew in 1981. [2] [6] The specific epithet (ampliata) means "enlarged", referring to the wide phyllodes. [7]

Distribution and habitat

This species grows in mallee scrub on loam or sand, mostly near Mullewa with a single collection near Coolcalalaya 100 km (62 mi) north of Mullewa. [2] [4]

Conservation status

Acacia ampliata is listed as "Priority One" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, meaning that it is known from only one or a few locations where it is potentially at risk. [8]

See also

References

  1. 1 2 "Acacia ampliata". Australian Plant Census. Retrieved 14 July 2024.
  2. 1 2 3 Cowan, Richard S.; Maslin, Bruce R. (1995). "Acacia Miscellany 10. New taxa and notes on previously described taxa of Acacia, mostly section Juliflorae (Leguminosae: Mimosoideae), in Western Australia". Nuytsia. 10 (1): 16–18. Retrieved 15 July 2024.
  3. ↑ "Acacia ampliata". World Wide Wattle. Western Australian Herbarium. Retrieved 5 September 2018.
  4. 1 2 Maslin, Bruce R. Kodela, Phillip G. (ed.). "Acacia ampliata". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 1 July 2024.
  5. ↑ "Acacia ampliata". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  6. ↑ "Acacia ampliata". Australian Plant Name Index. Retrieved 14 July 2024.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 132. ISBN   9780958034180.
  8. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Biodiversity, Conservation and Attractions. Retrieved 14 July 2024.
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