Ursinia Gaertn.

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Nomenclature

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Specimens

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Etymology

Named in honour of Johannes Heinrich Ursinus (1608–1667), a German botanical author.

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Description

Annual or perennial herbs or subshrubs, erect or sprawling. Leaves 1- or 2-pinnatisect. Capitula 1–several per stem, radiate (in Australia) or discoid; involucre multi-seriate, with bracts gradational in length; receptacle paleate. Ray florets neuter or female, sterile or fertile. Disc florets bisexual; corolla 5-lobed. Achenes ± homomorphic, ± terete, 5-ribbed. Pappus present.

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Diagnostic Features

The genus can be distinguished from other Anthemideae in Australia by the cylindrical paleae around the disc florets, the long hairs arising from the base of the achenes, and the pappus morphology. The margin of the outer and middle series of involucral bracts is conspicuously pigmented and the ligules are generally purplish abaxially.

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Distribution

A genus of 38 species mainly from South Africa, but also from Namibia, Botswana and Ethiopia. Two species naturalised in Australia.

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Excluded or Uncertain Names

Ursinia nana DC. subsp. nana, Prodr. 5: 690 (1836). Type: Locality unknown, Drege 2782; holo: G n.v., fide M. Prassler, Mitt. Bot. Staatssamml. München 6: 445 (1967).

A specimen collected by Meebold from Karahatta [Karrakatta] in W.A. was cited by M. Prassler, op. cit. 448, as this species. This specimen has not been seen and there have been no other records of this species in Australia.

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Bibliography

Prassler, M. (1967). Revision der gattung Ursinia. Mitt. Bot. Staatssamml. München 6: 363–478, 531–539.

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Source

Flora of Australia Volume 37 (2015).

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Taxonomy from

Australian Plant Image Index
Ursinia anthemoides by Schmidt-Lebuhn, A.N., 15/09/2012 (© Centre for National Biodiversity Research)

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Characters

From the Acacia characters species list, created by on Mar 12, 2015.
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© Copyright Commonwealth of Australia, 2024
Last updated: John Busby; Nov 19, 2020 11:48 Status: Legacy

Author - I.R. Thompson

Contributor - John R. Busby (ed. November 2020)

Editor -

Acknowledgements -

Cite this profile as: I.R. Thompson. Ursinia, in null (ed.), Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. https://profiles.ala.org.au/opus/foa/profile/Ursinia [Date Accessed: 15 March 2025]