Grevillea acropogon
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. acropogon
Binomial name
Grevillea acropogon

Grevillea acropogon is a species of flowering plant in the family Proteaceae and is endemic to a restricted part of southwestern Western Australia. It is a prostrate to erect shrub with pinnatisect leaves with five to seven sharply-pointed lobes, and red flowers.

Description

Grevillea acropogon is a prostrate to erect shrub that grows to a height of up to 1.8 m (5 ft 11 in) with softly-hairy young branchlets. The leaves are 15–25 mm (0.59–0.98 in) long and pinnatisect with five to seven lobes, sometimes the lobes further divided. The lobes are linear, sharply-pointed, 10–18 mm (0.39–0.71 in) long and 0.8–1.1 mm (0.031–0.043 in) wide. The flowers are red and arranged in groups of 18 to 24 on a flowering stem 12–17 mm (0.47–0.67 in) long, each flower on a pedicel 2.0–2.5 mm (0.079–0.098 in) long, the pistil 18–22 mm (0.71–0.87 in) long. Flowering occurs from June to September.[4][5]

Taxonomy

Grevillea acropogon was first formally described in 2000 by Robert Owen Makinson in the Flora of Australia based on material collected near Lake Unicup, west of Frankland, in 1996.[4][6] The specific epithet (acrobotrya) means "bearded at the end".[7]

Distribution and habitat

This grevillea is only known from two disjunct subpopulations in south-western Australia. It was once only known from the type location near Lake Unicup, approximately 30km west of the small town of Frankland River. However, there is a more recently discovered subpopulation within the Kulikup area, east of Boyup Brook.[8] The species is recorded as growing in shallow soils on the slopes of ironstone on the margins of seasonally inundated areas. The sites receive a high natural rainfall and frequently have surface water running over them.[8][2]

Conservation status

Grevillea acropogon is listed as "endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999, as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Biodiversity, Conservation and Attractions and as "Endangered" on the IUCN Red List of Threatened Species. The main threats to the species include damage by vehicles, drought, trampling by kangaroos and changes in hydrology.[1][2][8][9]

References

  1. 1 2 "Species Profile and Threats Database - Grevillea acropogon". Australian Government Department of Agriculture, Water and the Environment. Retrieved 1 November 2021.
  2. 1 2 3 Monks, L.; Makinson, R.; Keighery, G. (2020). "Grevillea acropogon". IUCN Red List of Threatened Species. 2020: e.T112645626A113307611. doi:10.2305/IUCN.UK.2020-3.RLTS.T112645626A113307611.en. Retrieved 20 December 2023.
  3. ↑ "Grevillea acropogon". Australian Plant Census. Retrieved 1 November 2021.
  4. 1 2 "Grevillea acropogon". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 1 November 2021.
  5. ↑ "Grevillea acropogon". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  6. ↑ "Grevillea acropogon". APNI. Retrieved 1 November 2020.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 126. ISBN 9780958034180.
  8. 1 2 3 "Conservation advice - Grevillea acropogon" (PDF). Australian Government Department of Agriculture, Water and the Environment. Retrieved 1 November 2021.
  9. ↑ Sheather, Warren; Sheather, Gloria. "Grevillea acropogon". Australian Plants Society. Retrieved 1 November 2021.
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