Cotula australis Hook.f.

First published in Fl. Nov.-Zel. 1: 128 (1852)
This species is accepted
The native range of this species is Zimbabwe to S. Africa, Madagascar, Australasia. It is an annual and grows primarily in the subtropical biome.


Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

Morphology General Habit
Annual herb, prostrate with ascending stems, 3–25 cm long; stems terete, thinly pubescent.
Morphology Leaves
Leaves alternate, bipinnatifid, the outline oblanceolate, 1–7 cm long, 0.6–2 cm wide, the base half-amplexicaul with a few short lobes, followed by a pseudopetiole, the distal part expanded and with lanceolate, apiculate segments, the final segments to 6 mm long, 1.5 mm wide, thinly pubescent.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula terminal, solitary, 2–4 mm long, 3-6 mm diameter; capitulum stalk filiform, 1.5–7.5 cm long, less than 0.5 mm in diameter, pubescent; phyllaries 2-seriate, 8–18, elliptic, 1.5–2 mm long, 1–1.5 mm wide, obtuse, sparsely pubescent, green with a paler scarious margin; receptacle convex, tuberculate.
Morphology Reproductive morphology Flowers Florets
Outer florets 2–3-seriate, up to 50, stalked for up to 1 mm, without a corolla, the ovary dorsiventrally flattened, 0.8–1.5 mm long, 0.6–1.2 mm wide including the rather thick wings, tuberculate except for the wings, topped by a style 0.2–0.6 mm long; inner florets 10–50, white or yellow-green, sessile or on a stalk of up to 0.3 mm long, hermaphrodite, the corolla tube ± 0.6 mm long, the 4 lobes ± 0.3 mm long, style 0.6–0.7 mm long, anthers 0.3 mm long.
Morphology Reproductive morphology Fruits
Achenes dimorphic, those of the outer florets elliptic to slightly obovate, winged, 1–1.5 mm long, 0.6–1.2 mm wide including wings of ± 0.2 mm, ± 0.3 mm thick; those of inner florets obovoid, hardly compressed, not winged, 0.8–1 mm long, 0.4–0.5 mm in diameter.
Weed of gardens and of ruderal places close to human habitation, usually in moist sites; 1200–2300 m
K3 K4 K6 T2 T3 T7 U2 originally from New Zealand and Australia, a widespread weed, common in the warmer parts of the Old and New Worlds

Bernal, R., G. Galeano, A. Rodríguez, H. Sarmiento y M. Gutiérrez. 2017. Nombres Comunes de las Plantas de Colombia.


Biogeografic region: Andean. Elevation range: 2300–3200 m a.s.l. Naturalised in Colombia. Colombian departments: Bogotá DC, Boyacá, Cundinamarca, Nariño.

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E.

Predicted extinction risk: not threatened. Confidence: confident

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá.

Adventicia en Colombia; Alt. 2300 - 3200 m.; Andes.
Morphology General Habit
No Evaluada


  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
  • Catálogo de Plantas y Líquenes de Colombia

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
  • Herbarium Catalogue Specimens

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  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at and
    • © Copyright 2023 World Checklist of Vascular Plants.
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at and
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants.
  • Kew Science Photographs

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  • Universidad Nacional de Colombia

    • ColPlantA database
  • Useful Plants and Fungi of Colombia