Petrophile longifolia
species of plant

Petrophile longifolia, commonly known as the long-leaved cone bush is a shrub which is native to the south west of Western Australia, growing between the city of Albany and the Stirling Range.
Description
Petrophile longifolia is a ground-hugging shrub without a lignotuber, but with short stems and long (20–40 cm), thin cylindrical leaves with a sharp-pointed end. The flower heads are silky, cream in colour, 4–6 cm across, at the ends of short branches and surrounded by many short, pointed, leaf-like bracts. The flowers appear in late spring and early summer and are followed by long, oval-shaped fruits which, like others of the genus, only release their seeds after a fire or the death of the plant.
Taxonomy and naming
Petrophile longifolia was first formally described in 1830 by Robert Brown from a specimen collected in 1829 near King George Sound by William Baxter. The description was published in Supplementum primum Prodromi florae Novae Hollandiae The specific epithet (longifolia) is derived from the Latin words longus meaning "long" and folium meaning "leaf".
Distribution and habitat
Long-leaved cone bush is found in the Esperance Plains, Jarrah forest, Swan Coastal Plain and Warren biogeographical regions. It grows in sand, gravel, sandy loam or clay on sandplains.
Cultivation
Petrophile longifolia, like others of its genus is not often cultivated but although it is a western species, is more reliable in humid east coast gardens than many others. It performs best in areas with dry summers and well drained soils in a sunny position.
“Petrophile longifolia” enters the record as species of plant. Crown Archives preserves that source wording while asking what Petrophile, longifolia and species can confirm, complicate or overturn.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jul 23, 2022. The linked authority identifier is Q18075376. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1830 and 1829.
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This entry incorporates text from “Petrophile longifolia” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.