Petrophile stricta

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.

Petrophile stricta
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Petrophile
Species:
P. stricta
Binomial name
Petrophile stricta
C.A.Gardner ex Foreman[1]

Description

Petrophile stricta is an erect, spreading shrub that typically grows to a height of 0.6–1.6 m (2 ft 0 in–5 ft 3 in) and has glabrous branchlets and leaves. The leaves are needle-shaped, sharply pointed and 45–135 mm (1.8–5.3 in) long. The flowers are arranged at the ends of branchlets in oval heads up to about 20 mm (0.79 in) in diameter on a peduncle 6–12 mm (0.24–0.47 in) long, with deciduous, linear involucral bracts at the base. The flowers are 10–12 mm (0.39–0.47 in) long, pink to cream-coloured and hairy. Flowering occurs from October to December and the fruit is a nut, fused with others in an oval head 20–47 mm (0.79–1.85 in) long.[2][3][4]

Taxonomy

Petrophile stricta was first formally described in 1990 by Donald Bruce Foreman in the journal Muelleria from and unpublished description by Charles Gardner.[4][5] The specific epithet (stricta) means "straight, erect or rigid".[6]

Distribution and habitat

This petrophile grows in sandy shrubland and scrub in sandy-gravelly soils over laterite on sandplains, ridges and low hills in the drier, inland parts in the Avon Wheatbelt, Coolgardie and Mallee biogeographic regions in the south-west of Western Australia.[2][3]

Conservation status

Petrophile stricta is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.[3]

References
  1. "Petrophile stricta". Australian Plant Census. Retrieved 9 January 2021.
  2. Foreman, David B. "Petrophile stricta". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 9 January 2021.
  3. "Petrophile stricta". FloraBase. Western Australian Government Department of Parks and Wildlife.
  4. Foreman, Donald B. (1990). "New species of Petrophile R.Br. (Proteaceae) from Western Australia". Muelleria. 8 (2): 307–309. Retrieved 9 January 2021.
  5. "Petrophile stricta". APNI. Retrieved 9 January 2021.
  6. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 315. ISBN 9780958034180.
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