Acacia armigera

Last updated

Fierce wattle
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. armigera
Binomial name
Acacia armigera

Acacia armigera, commonly known as fierce wattle , [2] is a species of flowering plant in the family Fabaceae and is endemic to a restricted area of inland Western Australia. It is a dense, rounded shrub with rigid, sharply-pointed phyllodes that are pentagonal in cross section, spherical heads of bright yellow flowers, and pods that are round in cross section, and up to 40 mm (1.6 in) long.

Contents

Description

Acacia armigera is a dense, rounded shrub that typically grows to a 0.8–1 m (2 ft 7 in – 3 ft 3 in) high and 1–2 m (3 ft 3 in – 6 ft 7 in) wide. Its phyllodes are pentagonal in cross section with equal faces and sharply-pointed, 13–34 mm (0.51–1.34 in) long and 1.0–1.2 mm (0.039–0.047 in) wide. The flowers are bright yellow and borne pairs in axils 10–24 mm (0.39–0.94 in) long on peduncles 4.5–7.5 mm (0.18–0.30 in) long, each head with 17 to 23 flowers. Flowering has been observed in late August and the pods are crusty, curved, round in cross section, 32–40 mm (1.3–1.6 in) long and 2.5–3.0 mm (0.098–0.118 in) wide. [3] [4]

Taxonomy

Acacia armigera was first formally described by the Robert Wayne Davis, Kevin R. Thiele and Geoff T.B. Cockerton in 2023 in the journal Nuytsia from specimens collected by Thiele and Cockerton near Mount Dimer, north of Southern Cross in 2021. [4] [5] The specific epithet (armigera) means 'bearing thorns, or armed'. [4]

Distribution

Fierce wattle is only known from the type location near Mount Dimer where it grows in open woodland on red-brown clay in the Coolgardie bioregion of inland Western Australia. [4]

Conservation status

This Acacia species is classified as "Priority One" by the Government of Western Australia Department of Parks and Wildlife, [2] meaning that it is known from only one or a few locations which are potentially at risk. [6]

See also

Related Research Articles

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<i>Acacia arcuatilis</i> Species of legume

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<i>Acacia acanthaster</i> Species of legume

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<i>Acacia acoma</i> Species of legume

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<i>Acacia aculeiformis</i> Species of legume

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<i>Acacia acutata</i> Species of legume

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<i>Acacia adinophylla</i> Species of legume

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<i>Acacia aestivalis</i> Species of legume

Acacia aestivalis is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a bushy shrub or tree with linear to narrowly lance-shaped phyllodes, the narrower end towards the base, racemes of 5 to 11 spherical heads of golden-yellow flowers, and glabrous, papery to thinly leathery pods.

<i>Acacia alexandri</i> Species of legume

Acacia alexandri is a species of flowering plant in the family Fabaceae and is endemic to the Cape Range in the north-west of Western Australia. It is a glabrous shrub with slender branchlets, linear phyllodes, and cream-coloured flowers arranged in 1 or 2 spherical heads in the axils of phyllodes, and narrowly oblong, papery pods up to 70 mm (2.8 in) long.

<i>Acacia andrewsii</i> Species of legume

Acacia andrewsii 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 shrub with narrowly oblong to lance-shaped, sometimes linear phyllodes, spherical heads of 20 to 30 golden-yellow flowers, and leathery pods up to 65 mm (2.6 in) long.

<i>Acacia anthochaera</i> Species of legume

Acacia anthochaera, commonly known as Kimberly's wattle, is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is a rounded shrub or tree with narrowly linear phyllodes, racemes of 4 to 9 spherical heads of bright light golden flowers, and narrowly oblong, papery pods up to 85 mm (3.3 in) long.

<i>Acacia aphanoclada</i> Species of legume

Acacia aphanoclada, also known as Nullagine ghost wattle, is a species of flowering plant in the family Fabaceae and is endemic to a small area in the Pilbara region of Western Australia. It is a glabrous wispy shrub with narrowly linear phyllodes, racemes of spherical heads of golden flowers, and narrowly oblong, papery pods up to 60–70 mm (2.4–2.8 in) long.

<i>Acacia argutifolia</i> Species of legume

Acacia argutifolia, commonly known as East Barrens wattle, is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is a low, spreading, intricate shrub with linear phyllodes, spherical heads of pale yellow flowers, and narrowly oblong, somewhat papery pods up to 40 mm (1.6 in) long.

<i>Acacia aristulata</i> Species of legume

Acacia aristulata, also known as Watheroo wattle, 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 with narrowly oblong to wedge-shaped phyllodes, spherical heads of creamy-white flowers, and coiled to twisted pods up to 60 mm (2.4 in) long.

<i>Acacia anfractuosa</i> Species of legume

Acacia anfractuosa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a diffuse, spindly, weeping shrub or tree with widely spreading, linear or s-shaped phyllodes, spherical heads of 22 to 32 golden-yellow flowers, and linear pods up to 120 mm (4.7 in) long.

<i>Acacia arrecta</i> Species of legume

Acacia arrecta, commonly known as yarnda nyirra wattle or Fortescue wattle, is a species of flowering plant in the family Fabaceae and is endemic to the Pilbara region of Western Australia. It is a compact, spreading shrub with curved, phyllodes that are round in cross-section, spherical heads of bright yellow flowers, and rigid, linear pods up to 55 mm (2.2 in) long.

Acacia adjutrices, commonly known as convivial wattle, is a species of flowering plant in the family Fabaceae and is endemic to a few places in the south-west of Western Australia. It is a small, multi-stemmed shrub with thin stems, mostly linear, ascending to erect phyllodes, flowers arranged in up to 4 spherical heads of golden yellow flowers, and crust-like, linear to narrowly oblong pods.

References

  1. ↑ "Acacia armigera". Plants of the World Online. Retrieved 28 November 2024.
  2. 1 2 "Acacia armigera". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. ↑ Maslin, Bruce R.; Kodela, Phillip G. "Acacia armigera". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 28 November 2024.
  4. 1 2 3 4 Davis, Robert W.; Thiele, Kevin R.; Cockerton, Geoff T.B. (2023). "Acacia armigera (Fabaceae), a new, geographically restricted wattle from the Coolgardie bioregion of Western Australia" (PDF). Nuytsia. 34: 95–98. Retrieved 28 November 2024.
  5. ↑ "Acacia armigera". APNI. Retrieved 28 November 2024.
  6. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Biodiversity, Conservation and Attractions. Retrieved 28 November 2024.
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