Shawia obcordata
| Shawia obcordata | |
|---|---|
| On Ben Lomond | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Shawia |
| Species: | S. obcordata
|
| Binomial name | |
| Shawia obcordata | |
| Synonyms[1] | |
Shawia obcordata is a species of flowering plant in the family Asteraceae and is endemic to Tasmania. It is a shrub that typically grows to a height of less than 3 ft (0.91 m). It usually has wedge-shaped leaves arranged alternately along the branchlets, the narrower end towards the base, with three or five teeth on the ends. The flowers are arranged singly in leaf axils and are few in number with up to six ray florets.[2][3]
The species was first formally described in 1847 by Joseph Dalton Hooker who gave it the name Eurybia obcordata in the London Journal of Botany from specimens collected by Ronald Campbell Gunn.[4][5] The specific epithet (obcordata) means "inverted heart-shaped".[6] In 1867, George Bentham changed the name to Olearia obcordata in Flora Australiensis.[7] After the genus Olearia was found to be polyphyletic, the genus Shawia was reinstated, and the name Shawia obcordata, first proposed by Carl Heinrich "Bipontinus" Schultz in 1861, became the accepted species name.[8][1]
Shawia obcordata grows in drier mountain areas of Tasmania.[2][3]
References
- ^ a b "Shawia obcordata (Hook.f.) Sch.Bip". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 15 March 2026.
- ^ a b Rodway, Leonard (1903). The Tasmanian Flora. Hobart: Tasmanian Government Printer. p. 74. Retrieved 15 June 2022.
- ^ a b Jordan, Greg. "Olearia obcordata". University of Tasmania. Retrieved 15 June 2022.
- ^ "Eurybia obcordata". APNI. Retrieved 15 June 2022.
- ^ Hooker, Joseph D. (1847). "Florae Tasmaniae Spicilegium: or, Contributions towards a Flora of Van Diemen's Land". London Journal of Botany. 6: 108. Retrieved 15 June 2022.
- ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 263. ISBN 9780958034180.
- ^ "Olearia obcordata". APNI. Retrieved 15 June 2022.
- ^ 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
- Media related to Olearia obcordata at Wikimedia Commons