Biology:Isopogon axillaris

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Short description: Species of shrub endemic to the southwest of Western Australia

Isopogon axillaris
Isopogon axillaris.jpg
In Kings Park Botanic Gardens
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Isopogon
Species:
I. axillaris
Binomial name
Isopogon axillaris
Isopogon axillarisDistMap7.png
Occurrence data from Australasian Virtual Herbarium
Synonyms[1]

Atylus axillaris (R.Br.) Kuntze

Isopogon axillaris is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with thick, linear to lance-shaped leaves with the narrower end towards the base and oval heads of pink or purple flowers.

Description

Isopogon axillaris is a shrub that typically grows to a height of 0.4–1.2 m (1 ft 4 in–3 ft 11 in) and has glabrous, brown branchlets. The leaves are linear to lance-shaped with the narrower end towards the base, 15–90 mm (0.59–3.54 in) long, 5–10 mm (0.20–0.39 in) wide and more or less sessile. The flowers are arranged in leaf axils in sessile, oval heads up to 35 mm (1.4 in) long with a few overlapping elliptic involucral bracts at the base. The flowers are 25–35 mm (0.98–1.38 in) long and pale pink to purplish pink. Flowering occurs from July to October and the fruit is a hairy, spherical nut, fused with others in an oval head about 10 mm (0.39 in) in diameter.[2][3]

Taxonomy

Isopogon axillaris was first formally described in 1810 by Robert Brown in the Transactions of the Linnean Society of London.[4][5]

Distribution and habitat

This isopogon grows in wet or swampy areas from near Karridale to Albany in the south-west of Western Australia.[2][3]

Conservation status

Isopogon axillaris is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.[3]


References

  1. 1.0 1.1 "Isopogon axillaris". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/83752. 
  2. 2.0 2.1 Foreman, David B.. "Isopogon axillaris". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. https://profiles.ala.org.au/opus/foa/profile/Isopogon%20axillaris. 
  3. 3.0 3.1 3.2 "Isopogon axillaris". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/2223. 
  4. "Isopogon axillaris". APNI. https://id.biodiversity.org.au/instance/apni/501481. 
  5. Brown, Robert (1810). "On the Proteaceae of Jussieu.". Transactions of the Linnean Society of London 10 (1): 74. https://www.biodiversitylibrary.org/item/13720#page/82/mode/1up. Retrieved 21 November 2020. 

Wikidata ☰ Q18082335 entry