Petrophile carduacea

Petrophile carduacea is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with deeply toothed leaves, and more or less spherical heads of hairy yellow flowers.

Petrophile carduacea

Priority Two — 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. carduacea
Binomial name
Petrophile carduacea
Synonyms[1]

Petrophila carduacea Meisn. orth. var.

Description

Petrophile carduacea is a shrub that typically grows to a height of 1–2 m (3 ft 3 in – 6 ft 7 in) and has hairy young branchlets. The leaves are 50–120 mm (2.0–4.7 in) long, 10–50 mm (0.39–1.97 in) wide and deeply toothed, the teeth broadly triangular and sharply-pointed. The flowers are arranged in leaf axils in more or less spherical heads about 10 mm (0.39 in) in diameter, with a few triangular involucral bracts at the base. The flowers are about 8 mm (0.31 in) long, yellow and hairy. Flowering occurs from September to October and the fruit is a nut, fused with others in an oblong head 20–35 mm (0.79–1.38 in) long on a peduncle up to 10 mm (0.39 in) long.[2][3]

Taxonomy

Petrophile carduacea was first formally described in 1856 by Carl Meissner in de Candolle's Prodromus Systematis Naturalis Regni Vegetabilis from material collected by James Drummond.[4][5] The specific epithet (carduacea) means "thistle-like".[6]

Distribution and habitat

This petrophile grows in scrub and heath in and near the Stirling Range in the Esperance Plains and Jarrah Forest biogeographic regions of southwestern Western Australia.[2][3]

Conservation status

Petrophile carduacea 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]

References
  1. "Petrophile carduacea". Australian Plant Census. Retrieved 6 December 2020.
  2. Foreman, David B. "Petrophile carduacea". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 6 December 2020.
  3. "Petrophile carduacea". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. "Petrophile carduacea". APNI. Retrieved 6 December 2020.
  5. Meissner, Carl; de Candolle, Augustin P. (ed.) (1856). Prodromus systematis naturalis regni vegetabilis. Vol. 14. Paris: Sumptibus Sociorum Treuttel et Würtz. p. 274. Retrieved 6 December 2020. {{cite book}}: |first2= has generic name (help)
  6. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 158. ISBN 9780958034180.
  7. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 6 December 2020.
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