Biology:Shawia persoonioides

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Short description: Species of shrub

Shawia persoonioides
At Mount Murchison
Scientific classification edit
Missing taxonomy template (fix): Shawia
Species:
Template:Taxonomy/ShawiaS. persoonioides
Binomial name
Template:Taxonomy/ShawiaShawia persoonioides
(DC.) Sch.Bip.
Synonyms[1][2]

Shawia persoonioides is a species of flowering plant in the family Asteraceae and is endemic to Tasmania. It is a shrub with oblong or egg-shaped leaves and heads of dairy-like flowers.

Description

Shawia persoonioides is a bushy shrub that typically grows to a height of 1.0–1.5 m (3 ft 3 in–4 ft 11 in). Its leaves are arranged alternately, oblong or egg-shaped with the narrower end towards the base, 19–38 mm (0.75–1.50 in) long with a rounded tip. They are shiny green on the upper surface and covered with silvery hairs on the lower side. The heads or daisy-like "flowers" are arranged in leafy panicles with 3 to 8 white ray florets surrounding 10 to 12 disc florets. Flowering occurs in January.[3][4][5]

Taxonomy

This species was first formally described in 1836 by Swedish botanist Augustin Pyramus de Candolle who named it Eurybia persoonioides in his book Prodromus Systematis Naturalis Regni Vegetabilis from specimens collected at a height of 4,100 ft (1,200 m) on Mount Wellington.[6][7] In 1867, the species was transferred to Olearia as O. persoonioides by George Bentham in his Flora Australiensis.[4][8] After the genus Olearia was found to be polyphyletic, the genus Shawia was reinstated, and the name Shawia persoonioides, first proposed by Carl Heinrich "Bipontinus" Schultz in 1861, became the accepted species name.[9][1]

Similar species

About 22 species of formerly or currently placed in Olearia have been recorded in Tasmania.[10] Similar species found in Tasmania include:

  • Olearia archeri is found in open forest on the east coast, including the Tasman Peninsula.[11]
  • Olearia tasmanica has leaves that are rusty-brown on the lower surface, and grows in subalpine woodlands.[12]

Distribution and habitat

Shawia persoonioides is endemic to Tasmania and is common in most mountainous districts of the state.[5]

Conservation status

This species has not been listed in the International Union for Conservation of Nature Red List.[13]

References

  1. ↑ 1.0 1.1 "Shawia persoonioides (DC.) Sch.Bip.". Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:249009-1. 
  2. ↑ "Olearia persoonioides". https://biodiversity.org.au/nsl/services/apc-format/display/105391. Retrieved 16 March 2025. 
  3. ↑ Rodway, Leonard (1903). The Tasmanian Flora. Hobart: Tasmanian Government Printer. p. 74. https://www.biodiversitylibrary.org/page/37374840#page/132/mode/1up. Retrieved 28 June 2022. 
  4. ↑ 4.0 4.1 Bentham, George; von Mueller, Ferdinand (1867). Flora Australiensis. 3. London: Lovell Reeve & Co.. p. 471. https://www.biodiversitylibrary.org/item/41807#page/479/mode/1up. Retrieved 28 June 2022. 
  5. ↑ 5.0 5.1 Jordan, Greg. "Olearia persoonioides". University of Tasmania. https://www.utas.edu.au/dicotkey/dicotkey/AST/ast/sOlearia_persoonioides.htm. 
  6. ↑ "Eurybia persoonioides". Australian Plant Name Index. https://biodiversity.org.au/nsl/services/rest/instance/apni/531254. 
  7. ↑ de Candolle, Augustin P. (1836). Prodromus Systematis Naturalis Regni Vegetabilis. 5. Paris: Sumptibus Sociorum Treuttel et Würtz. p. 267. https://www.biodiversitylibrary.org/item/7154#page/272/mode/1up. Retrieved 16 March 2025. 
  8. ↑ "Olearia persoonioides". Australian Plant Name Index. https://biodiversity.org.au/nsl/services/rest/instance/apni/534889. 
  9. ↑ Saldivia, P. & Nicol, D.A. 2025. Reinstatement, broader circumscription, and infrageneric classification of Shawia (Astereae, Celmisiinae), a large woody genus endemic to Australasia. Phytoneuron 2025-49: 1–43. Published 11 September 2025. ISSN 2153 733X
  10. ↑ Jordan, Greg. "Olearia (Asteraceae)". University of Tasmania. https://www.utas.edu.au/dicotkey/dicotkey/AST/ast/gOlearia.htm. 
  11. ↑ Jordan, Greg. "Olearia archeri". University of Tasmania. https://www.utas.edu.au/dicotkey/dicotkey/AST/ast/sOlearia_archeri.htm. 
  12. ↑ Jordan, Greg. "Olearia tasmanica". University of Tasmania. https://www.utas.edu.au/dicotkey/dicotkey/AST/ast/sOlearia_tasmanica.htm. 
  13. ↑ "IUCN Red List". https://www.iucnredlist.org/search/grid?query=Olearia%20persoonioides&searchType=species. 

Wikidata ☰ Q65948621 entry



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