Olearia cordata

Olearia cordata is an aromatic slender shrub with mostly mauve to dark blue daisy-like flowers endemic to New South Wales. Flowers appear in clusters at the end of branches, leaves are narrow and heart-shaped near the base.

Olearia cordata
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Asteraceae
Genus:
Olearia
Species:
O. cordata
Binomial name
Olearia cordata
Nicholas Lander[1]

Description

Olearia cordata is a shrub to 2 m (6.6 ft) high. The branchlets and leaves are thickly covered in hairs and glands that are sticky and rough. The leaves grow sparsely and alternately are 10–40 mm (0.39–1.6 in) long and 2–8 mm (0.079–0.31 in) wide and obscure veins. The leaves are narrowly egg-shaped becoming heart shaped near the base and tapering to either a sharp point or rounded. The leaf margin is entire with a rolled edge. The single flower head consists of a cluster of 10-18 mauve to dark blue daisy-like flowers are up 22–35 mm (0.87–1.4 in) in diameter on a peduncle 40 mm (1.6 in) long. The flower centre is yellow. The fruit is smooth with several long hairs. Flowers from November to February.[2][3][4]

Taxonomy and naming

Olearia cordata was first formally described by Nicholas Lander in 1975 and published in Telopea.[5] The specific epithet (cordata) is derived from the Latin word cordatus meaning "heart-shaped".[6]

Distribution and habitat

This species is endemic to New South Wales in sparsely scattered locations from Wisemans Ferry to Wollombi mostly in National Parks. Grows in open scrubland on sandstone ridges in dry sclerophyll forest.[3][4]

Conservation status

Olearia cordata is listed as "vulnerable" in New South Wales by the Office of Environment & Heritage and under the Australian Government EPBC Act.[4]

References
  1. "Olearia cordata". APC. Retrieved 28 May 2019.
  2. "Olearia cordata". NSW Threatened Species. NSW Office of Environment and Heritage. Retrieved 28 May 2019.
  3. Lander, N.S. "Olearia cordata". New South Wales FloraOnline. Retrieved 28 May 2019.
  4. "Olearia cordata". Office of Environment & Heritage. NSW Government. Retrieved 4 June 2019.
  5. Lander, Nicholas S. "Olearia cordata". APNI. Retrieved 4 June 2019.
  6. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 232.
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