Cotula australis (Sieb. & Spreng) Hook.f.

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Photo: Bart Wursten
Chelinda Camp, staff area, Nyika National Park

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Synonyms:	Anacyclus australis Spreng. Cotula villosa DC.
Common names:	Annual buttonweed (English)
Frequency:
Status:	Introduced
Description:	Annual, prostrate or ascending, herb, to 25 cm. Leaves 2-pinnatifid, oblanceolate in outline, thinly pubescent; base semi-amplexicaul. Capitula solitary, terminal, ± flattened, borne on a long peduncle, 1.5-7.5 cm long. Phyllaries elliptic, with scarious margins, borne in 2 rows. Outer florets lacking a corolla; inner florets white or yellow-green; all florets stalked. Achenes dimorphic; those of outer florets elliptic, winged; those of inner florets obovoid, not winged.
Notes:	Very likely more widespread but under recorded in Malawi.
Derivation of specific name:	australis: southern
Habitat:	A weed of gardens and lawns, usually close to human habitation.
Altitude range:	Up to 2350 m
Flowering time:	Apr - Sep
Worldwide distribution:	Native of New Zealand and Australia; now widespread as a weed in the warmer parts of the Old and New Worlds
Malawi distribution:	N(other?)
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Content last updated:	Friday 28 September 2018
Literature:	Beentje, H.J. (ed.) (2002). Compositae (Part 2) Flora of Tropical East Africa Pages 525 - 526. Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 24.

Other sources of information about Cotula australis:

Our websites:

Flora of Zimbabwe: Cotula australis

External websites:

African Plants: A Photo Guide (Senckenberg): Cotula australis
BHL (Biodiversity Heritage Library): Cotula australis
EOL (Encyclopedia of Life): Cotula australis
GBIF (Global Biodiversity Information Facility): Cotula australis
Google: Web - Images - Scholar
iNaturalist: Cotula australis
IPNI (International Plant Names Index): Cotula australis
JSTOR Plant Science: Cotula australis
Mansfeld World Database of Agricultural and Horticultural Crops: Cotula australis
Plants of the World Online: Cotula australis
Tropicos: Cotula australis
Wikipedia: Cotula australis