Petrophile anceps
{{short description|Species of shrub endemic to Western Australia}}
{{speciesbox
|genus = Petrophile
|species = anceps
|image = Petrophile anceps.jpg
|status=
|status_system=
|authority =R.Br.{{cite web|title=Petrophile anceps|url= https://biodiversity.org.au/nsl/services/apc-format/display/103367|publisher=Australian Plant Census|access-date=30 November 2020}}
|synonyms =
- Petrophila anceps R.Br. orth. var.
- Petrophila linearis var. anceps Benth. orth. var.
- Petrophile linearis var. anceps (R.Br.) Benth.
}}
Petrophile anceps is a species of flowering plant in the family Proteaceae and is endemic to a restricted part of the south-west of Western Australia. It is a shrub with sharply-pointed, linear leaves and oval heads of hairy yellow flowers.
Description
Petrophile acicularis is a shrub that typically grows to a height of {{cvt|0.5–1|m}} and has glabrous branchlets and leaves. The leaves are linear, {{cvt|60–110|mm}} long and {{cvt|2–3|mm}} wide with a sharply-pointed tip. The flowers are arranged in sessile, oval heads about {{cvt|15|mm}} long, sometimes in clusters, with many pointed involucral bracts at the base. The flowers are about {{cvt|15|mm}} long, yellow and hairy. Flowering occurs from September to October and the fruit is a nut, fused with others in a conical head about {{cvt|25|mm}} long.{{cite web |last1=Foreman |first1=David B. |title=Petrophile anceps |url=https://profiles.ala.org.au/opus/foa/profile/Petrophile%20anceps |publisher=Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra |access-date=30 November 2020}}{{FloraBase | name = Petrophile anceps | id = 2283}}
Taxonomy
Petrophile acicularis was first formally described in 1830 by Robert Brown in the Supplementum to his Prodromus Florae Novae Hollandiae et Insulae Van Diemen from material collected by William Baxter at King George's Sound.{{cite web|title=Petrophile anceps|url= https://id.biodiversity.org.au/instance/apni/531884|publisher=APNI|access-date=30 November 2020}}{{cite book|last1=Brown|first1=Robert|title=Supplementum primum prodromi florae Novae Hollandiae |date=1830|location=London|page=5 |url=https://www.biodiversitylibrary.org/item/77294#page/519/mode/1up |access-date=30 November 2020}} The specific epithet (anceps) means "double", referring to the panicle.{{cite book |last1=Sharr |first1=Francis Aubi |last2=George |first2=Alex |title=Western Australian Plant Names and Their Meanings |date=2019 |publisher=Four Gables Press |location=Kardinya, WA |isbn=9780958034180 |page=132 |edition=3rd}}
Distribution and habitat
This petrophile is restricted to the Stirling Range where it grows in heath and scrub.
Conservation status
Petrophile acicularis is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.
References
{{Reflist}}
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{{DEFAULTSORT:Petrophile anceps}}
Category:Eudicots of Western Australia
Category:Endemic flora of Western Australia