Petrophile conifera

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Petrophile conifera
Petrophile conifera.jpg
In Sandy Gully
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Petrophile
Species:
P. conifera
Binomial name
Petrophile conifera
Synonyms [1]

Petrophila coniferaMeisn. orth. var.

Petrophile conifera is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a bushy, much-branched shrub with pinnate, sharply-pointed leaves, and oval heads of hairy, cream-coloured to yellowish white flowers.

Contents

Description

Petrophile conifera is a bushy, much-branched shrub that typically grows to a height of 0.3–1.5 m (1 ft 0 in – 4 ft 11 in) and has woolly-hairy young branchlets. The leaves are glabrous, 40–110 mm (1.6–4.3 in) long on a petiole 20–50 mm (0.79–1.97 in) long. They are rigid and needle-like, pinnately divided with sharply-pointed pinnae 4–35 mm (0.16–1.38 in) long. The flowers are arranged on the ends of branchlets in sessile, oval heads 20–30 mm (0.79–1.18 in) long, with hairy, lance-shaped involucral bracts at the base. The flowers are 8–15 mm (0.31–0.59 in) long, hairy, cream-coloured, creamy yellow or yellowish white. Flowering occurs from August to October and the fruit is a nut, fused with others in an oval head 10–30 mm (0.39–1.18 in) long. [2] [3]

Taxonomy

Petrophile conifera was first formally described in 1855 by Carl Meissner in Hooker's Journal of Botany and Kew Garden Miscellany from material collected by James Drummond. [4] [5] The specific epithet (conifera) means "cone-bearing". [6]

In 2011, Michael Clyde Hislop and Kelly Anne Shepherd described two subspecies in the journal Nuytsia and the names are accepted by the Australian Plant Census: [7]

Distribution and habitat

This petrophile grows in heath and on sandplains and is common north of Geraldton in the Avon Wheatbelt and Geraldton Sandplains biogeographic regions of southwestern Western Australia. [2] [3] Subspecies conifera is found from Eurardy Reserve and Kalbarri National Park to the Chapman River near Geraldton and subsp. divaricata only occurs near Coorow. [7]

Conservation status

Petrophile conifera subsp. conifera is classified as "not threatened" [10] but subsp. divaricata is classified as "Priority Two" by the Western Australian Government Department of Parks and Wildlife, [11] meaning that it is poorly known and from only one or a few locations. [12]

Related Research Articles

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Isopogon formosus, commonly known as rose coneflower, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with divided leaves with cylindrical segments, and spherical to oval heads of pink or red flowers.

<i>Petrophile macrostachya</i> Species of shrub endemic to south-west Western Australia

Petrophile macrostachya is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is an erect shrub with prickly, pinnate or lobed leaves, and oblong or cylindrical heads of glabrous yellow to cream-coloured flowers.

<i>Petrophile axillaris</i> Species of shrub endemic to Western Australia

Petrophile axillaris is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with pinnately-divided, sharply-pointed leaves, and spherical heads of hairy pink or grey flowers.

Petrophile chrysantha is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a small shrub with crowded, sharply-pointed, pinnately-divided leaves, and oval heads of hairy, cream-coloured to dark yellow flowers.

Petrophile clavata is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with curved, needle-shaped, sharply-pointed leaves and spherical heads of hairy, cream-coloured to very pale yellow flowers.

<i>Petrophile divaricata</i> Species of shrub endemic to Western Australia

Petrophile divaricata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with bipinnate, sharply-pointed leaves, and oval to oblong heads of hairy, yellow flowers.

<i>Petrophile drummondii</i> Species of shrub endemic to Western Australia

Petrophile drummondii is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with rigid, pinnate leaves with needle-shaped, sharply-pointed pinnae, and spherical heads of hairy, fragrant, yellow flowers.

<i>Petrophile filifolia</i> Species of shrub endemic to Western Australia

Petrophile filifolia is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a small shrub with curved, long, needle-shaped leaves and more or less spherical heads of hairy cream-coloured to pale yellow flowers.

Petrophile incurvata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with flattened, sometimes pinnately-divided leaves with up to five sharply pointed lobes, and cylindrical to oval heads of silky-hairy, cream-coloured to yellowish-white flowers.

<i>Petrophile megalostegia</i> Species of shrub endemic to Western Australia

Petrophile megalostegia is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with needle-shaped or flattened, sometimes S-shaped leaves with a sharply-pointed tip, and more or less cylindrical heads of silky-hairy, yellow to cream-coloured flowers.

Petrophile pilostyla is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with needle-shaped, sharply-pointed leaves and spherical heads of hairy, cream-coloured or pale yellow flowers.

<i>Petrophile plumosa</i> Species of shrub endemic to Western Australia

Petrophile plumosa is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with rigid, sharply-pointed, sometimes lobed leaves, and more or less spherical heads of hairy, pale yellow flowers.

<i>Petrophile prostrata</i> Species of shrub endemic to Western Australia

Petrophile prostrata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a prostrate shrub with needle-shaped but usually not sharply-pointed leaves and spherical heads of hairy, pale yellow or cream-coloured flowers.

<i>Petrophile recurva</i> Species of shrub endemic to Western Australia

Petrophile recurva is a species of flowering plant in the family Proteaceae and is endemic to south-western Western Australia. It is an erect, many-branched shrub with needle-shaped, sharply-pointed leaves, and spherical heads of hairy pale yellow or cream-coloured flowers.

<i>Petrophile scabriuscula</i> Species of shrub endemic to Western Australia

Petrophile scabriuscula is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a dense, prickly shrub with sharply-pointed, needle-shaped leaves more or less pressed against the branchlets, and oval heads of hairy, yellow to creamy-yellow flowers.

<i>Petrophile semifurcata</i> Species of shrub endemic to Western Australia

Petrophile semifurcata is a species of flowering plant in the family Proteaceae and is endemic to an area near the west coast of Western Australia. It is an erect, bushy shrub with sharply-pointed, needle-shaped, sometimes lobed leaves and oval heads of silky-hairy, whitish, lemon-yellow or cream-coloured flowers.

<i>Petrophile serruriae</i> Species of shrub endemic to Western Australia

Petrophile serruriae is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with crowded, pinnate, needle-shaped, sharply-pointed leaves, and oval heads of silky-hairy yellow, greyish mauve to pink flowers.

<i>Petrophile trifurcata</i> Species of shrub endemic to Western Australia

Petrophile trifurcata is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with three-lobed, needle-shaped, sharply-pointed leaves, and spherical heads of hairy, yellow flowers.

<i>Isopogon pruinosus</i> Species of shrub in the family Proteaceae endemic to southwestern Western Australia

Isopogon pruinosus is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a compact, spreading shrub with narrow egg-shaped leaves with the narrower end towards the base and spherical to elliptic heads of pink flowers.

Petrophile foremanii is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with more or less cylindrical leaves and elliptic to spherical heads of hairy, creamy yellow flowers on the ends of branchlets.

References

  1. 1 2 "Petrophile conifera". Australian Plant Census. Retrieved 8 December 2020.
  2. 1 2 Foreman, David B. "Petrophile conifera". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 6 December 2020.
  3. 1 2 "Petrophile conifera". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Petrophile conifera". APNI. Retrieved 8 December 2020.
  5. ↑ Meissner, Carl (1855). "New Proteaceae of Australia". Hooker's Journal of Botany and Kew Gardens Miscellany. 7: 67. Retrieved 8 December 2020.
  6. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 169. ISBN   9780958034180.
  7. 1 2 Rye, Barbara L.; Hislop, Michael C.; Shepherd, Kelly A.; Hollister, Chris (2011). "New south-western Australian members of the genus Petrophile (Proteaceae: Petrophileae), including a hybrid" (PDF). Nuytsia. 21 (2): 46–47. Retrieved 8 December 2020.
  8. ↑ "Petrophile conifera subsp. conifera". Australian Plant Census. Retrieved 8 December 2020.
  9. ↑ "Petrophile conifera subsp. divaricata". Australian Plant Census. Retrieved 8 December 2020.
  10. ↑ "Petrophile conifera subsp. conifera". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  11. ↑ "Petrophile conifera subsp. divaricata". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  12. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 8 December 2020.
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