Diplolaena angustifolia

Diplolaena angustifolia, commonly known as Yanchep rose, is a shrub which is endemic to the area around Perth in Western Australia.

Diplolaena angustifolia
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Rosids
Order:
Sapindales
Family:
Rutaceae
Genus:
Diplolaena
Species:
D. angustifolia
Binomial name
Diplolaena angustifolia

Description

The shrub has an erect to compact to spreading habit and typically grows to a height of 0.3 to 1.5 m (1 ft 0 in to 4 ft 11 in). It has linear to narrowly oblong shaped leaves with a recurved to revolute margin.[1] The Yanchep Rose has many small flowers with long bright stamens that are crowded in to heads surrounded by petal-like bracts, so that the whole resembles a many-stamened single flower. Diplolaena angustifolia has pendant heads up to 3 to 4 cm (1.2 to 1.6 in) across, surrounded by a series of bracts. Stamens up to 3 cm (1.2 in) long, range in colour from orange to crimson. It is a winter-flowering shrub[2] the usually blooms between June and October.[1]

Taxonomy

The species was first formally described by the botanist William Jackson Hooker in the work Botanical Magazine published in 1843. Synonyms include; Diplolaena salicifolia, Diplolaena salicifolia var. revoluta and Diplolaena salicifolia var. salicifolia.[3]

Distribution

It has a scattered distribution along the coast and slightly inland between Perth in the south as far north as Dongara in the Wheatbelt region of Western Australia. The shrub is often found on sand dunes, limestone hills and rocky ridges growing in sandy soils.[1]

References
  1. "Diplolaena angustifolia". FloraBase. Western Australian Government Department of Parks and Wildlife.
  2. Wildflowers of Western Australia by Barbara Mullins, Photography by Douglass Baglin, 1978, third printing in 1984. A Mulavon publication, ISBN 0 85899 032 6
  3. "Diplolaena angustifolia Hook". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 16 March 2019.


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