Olearia hookeri

Olearia hookeri
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Olearia
Species:
O. hookeri
Binomial name
Olearia hookeri
Synonyms[1]
  • Eurybia hookeri Sond.
  • Olearia hookeri (Sond.) Benth. var. hookeri

Olearia hookeri, commonly known as crimsontip daisybush,[2] is a species of flowering plant in the family Asteraceae and is endemic to Tasmania. It is a sticky shrub with small, narrowly linear leaves and white to bluish-purple and yellow, daisy-like inflorescences.

Description

Olearia hookeri is a sticky, glabrous shrub that typically grows to a height of up to 2 m (6 ft 7 in). Its leaves are narrowly linear, 3–5 mm (0.12–0.20 in) long. The heads or daisy-like "flowers" are arranged singly on the ends of branchlets and are 20–25 mm (0.79–0.98 in) in diameter. Each head has eight to ten white to bluish-purple ray florets surrounding a slightly larger number of yellow disc florets. Flowering occurs from September to December and the fruit is a short, hairy achene, the pappus with bristles of different lengths.[2][3][4]

Taxonomy

The species was formally described in 1853 by Otto Wilhelm Sonder who gave it the name Eurybia hookeri in Linnaea: ein Journal für die Botanik in ihrem ganzen Umfange, oder Beiträge zur Pflanzenkunde, based on plant material collected by Charles Stuart.[5][6] In 1867, George Bentham changed the name to Olearia hookeri in Flora Australiensis.[4][7]

Distribution and habitat

Olearia hookeri grows on dry hills near Hobart and in shrubby woodland on the south and central-east coasts of Tasmania.[2]

Conservation status

This daisy bush is listed as "rare" under the Tasmanian Government Threatened Species Protection Act 1995.[2]

References

  1. ^ a b "Olearia hookeri". Australian Plant Census. Retrieved 26 April 2022.
  2. ^ a b c d "Olearia hookeri". Tasmanian Government Department of Primary Industries, Parks, Water and the Environment. Retrieved 26 April 2022.
  3. ^ Jordan, Greg. "Olearia hookeri". University of Tasmania. Retrieved 26 April 2022.
  4. ^ a b Bentham, George (1867). Flora Australiensis. Vol. 3. London: Lovell Reeve & Co. p. 483. Retrieved 26 April 2022.
  5. ^ "Eurybia hookeri". APNI. Retrieved 26 April 2022.
  6. ^ Sonder, Otto W. (1853). "Plantae Muellerianae. Beitrag zur Flora Sudaustraliens, aus den Sammlungen des Dr. Ferd. Muller". Linnaea: Ein Journal für die Botanik in ihrem ganzen Umfange, oder Beiträge zur Pflanzenkunde. 25: 463–464. Retrieved 26 April 2022.
  7. ^ "Olearia hookeri". APNI. Retrieved 26 April 2022.

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