Petrophile trifurcata

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Petrophile trifurcata
Petrophile trifurcata.jpg
A=flowering branchlet; B=style; C=fruiting branchlet; D,E=upper and lower surfaces of nut
Status DECF P2.svg
Priority Two — Poorly Known Taxa (DEC)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Petrophile
Species:
P. trifurcata
Binomial name
Petrophile trifurcata

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.

Contents

Description

Petrophile trifurcata is a shrub that typically grows to a height of 35–65 cm (14–26 in) and has hairy young branchlets that become glabrous as they age. The leaves are 10–16 mm (0.39–0.63 in) long and needle-shaped, mostly with three sharply-pointed lobes up to 6 mm (0.24 in) long. The flowers are arranged at the ends of branchlets in sessile, spherical heads 8–10 mm (0.31–0.39 in) in diameter, with egg-shaped involucral bracts at the base. The flowers are about 10 mm (0.39 in) long, yellow and hairy. Flowering has been observed in September and the fruit is a nut, fused with others in a spherical head about 12 mm (0.47 in) in diameter. [2] [3] [4]

Taxonomy

Petrophile trifurcata was first formally described in 1995 by Donald Bruce Foreman in Flora of Australia from material collected near Wongan Hills in 1983. [5] The specific epithet (trifurcata) means "three-forked", referring to the three-pronged leaves. [6]

Distribution and habitat

This petrophile is only known from a few locations near Wongan Hills and between Watheroo and Coorow in the Avon Wheatbelt, Geraldton Sandplains biogeographic regions, growing in sandy soil with Actinostrobus arenarius . [2] [3] [4]

Conservation status

This petrophile is classified as "Priority Two" by the Western Australian Government Department of Parks and Wildlife [3] meaning that it is poorly known and from only one or a few locations. [7]

Related Research Articles

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

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

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

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

Petrophile imbricata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with overlapping, needle-like leaves and oval heads of hairy cream-coloured 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.

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

Petrophile merrallii is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is an erect shrub with spreading, needle-shaped leaves and oval to spherical heads of hairy yellow flowers.

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

Petrophile misturata is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with simple and pinnate, needle-shaped leaves and spherical heads of hairy, dull yellow flowers.

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

Petrophile pauciflora is a species of flowering plant in the family Proteaceae and is endemic to western areas of Western Australia. It is a shrub usually with three-forked leaves, the lobes sharply-pointed, and spherical heads of small groups of hairy yellow or orange 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 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 rigida</i> Species of shrub endemic to Western Australia

Petrophile rigida is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with rigid, branched, needle-shaped, sharply-pointed leaves, and more or less spherical heads of hairy yellow 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 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.

Petrophile stricta is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is an erect, spreading shrub with needle-shaped, sharply-pointed leaves, and oval heads of hairy, pink to cream-coloured flowers.

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

Petrophile teretifolia 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 needle-shaped but blunt-pointed leaves, and oval to more or less spherical heads of hairy pink to mauve flowers.

Petrophile vana is a species of flowering plant in the family Proteaceae and is endemic to inland Western Australia. It is a shrub with needle-shaped, sharply-pointed leaves, and spherical to oval heads of small numbers of hairy, white flowers.

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

Petrophile wonganensis is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a dense shrub with blunt, needle-shaped leaves, and more or less spherical heads of hairy, yellow 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.

Petrophile globifera 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 cream-coloured to pale yellow flowers on the ends of branchlets.

References

  1. ↑ "Petrophile trifurcata". Australian Plant Census. Retrieved 12 January 2021.
  2. 1 2 Foreman, David B. "Petrophile trifurcata". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 12 January 2021.
  3. 1 2 3 "Petrophile trifurcata". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. 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): 56–57. Retrieved 12 January 2021.
  5. ↑ "Petrophile trifurcata". APNI. Retrieved 12 January 2021.
  6. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 327. ISBN   9780958034180.
  7. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 12 January 2021.
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