Petrophile plumosa
Near Moora

Priority Three — Poorly Known Taxa (DEC)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Petrophile
Species:
P. plumosa
Binomial name
Petrophile plumosa

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.

Description

Petrophile plumosa is a shrub that typically grows to a height of 0.5–1.5 m (1 ft 8 in – 4 ft 11 in) and has hoary branchlets. The leaves are spatula-shaped, flattened, 13–32 mm (0.51–1.26 in) long on a petiole 6–20 mm (0.24–0.79 in) long and sharply-pointed, sometimes with two or three sharply-pointed lobes 2–6 mm (0.079–0.236 in) long. The flowers are arranged on the ends of branchlets in sessile, more or less spherical heads 20–25 mm (0.79–0.98 in) long, with egg-shaped to oblong involucral bracts at the base. The flowers are 15–20 mm (0.59–0.79 in) long, pale yellow and densely hairy. Flowering occurs from July to November and the fruit is a nut, fused with others in an oval head about 25 mm (0.98 in) long.[2][3]

Taxonomy

Petrophile plumosa 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 (plumosa) means "covered with feathers" referring to the hairy branchlets.[6]

Distribution and habitat

This petrophile grows in shrubland in loamy soils over laterite on sandplain and gravelly hills in the Moore River area.[2][3]

Conservation status

Petrophile plumosa is classified as "Priority Three" by the Government of Western Australia Department of Parks and Wildlife[3] meaning that it is poorly known and known from only a few locations but is not under imminent threat.[7]

References

  1. ↑ "Petrophile plumosa". Australian Plant Census. Retrieved 30 December 2020.
  2. 1 2 Foreman, David B. "Petrophile plumosa". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 30 December 2020.
  3. 1 2 3 "Petrophile plumosa". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Petrophile plumosa". APNI. Retrieved 10 December 2020.
  5. ↑ Meissner, Carl; Hooker, William Jackson (1855). "New Proteaceae of Australia". Hooker's Journal of Botany and Kew Garden Miscellany. 7: 69. Retrieved 30 December 2020.
  6. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 280. ISBN 9780958034180.
  7. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 30 December 2020.
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