Myosurus australis F.Muell.


Trans. Philos. Soc. Victoria 1: 6 (1854) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Short-lived annual, 1.5–15 cm high. Leaves narrow-linear, sometimes slightly expanded above, 1–10 cm long, 0.5–2 mm wide, usually withering before fruit develops. Flowering stem mostly 1–3 cm long at anthesis, elongating to c. 10 cm in fruit; sepals 1.5–3 mm long, including spur of 0.5–1 mm; petals mostly 3–5, sometimes absent, 1.5–2.5 mm long, expanded in the upper half; nectary minute, bracket-like, attached just below expanded part of petal; stamens 5–10, subequal to petals. Fruiting spike cylindric, 5–40 mm long, 1.5–2.5 mm diam.; achenes typically 100–300 per spike, dorsally diamond-shaped to trullate, c. 1 mm long, including the appressed, ascending beak 0.3–0.5 mm long.  Flowers Sep.–Nov.

CVU, Gold, LoM, MuF, MuM, MSB, RobP, VRiv, VVP, Wim. Also WA (naturalised), SA, Qld, NSW, ACT, Tas. Occasional on drying mud around pools, lakes and billabongs, mainly in the north and north-west (e.g. Hattah Lakes, Wyperfeld National Park, Barmah, Kerang areas), with scattered occurrences near e.g. Mt Dundas, Portland, Moyston, Maryborough, Beaufort.

Myosurus australis is distinguished from M. minimus var. minimus of Europe and North America in having more angular and relatively longer achenes. Treated as Myosurus minimus var. australis in WA, SA and NSW.

Source: Walsh, N.G. (1996). Ranunculaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne (as Myosurus minimus var. australis (F.Muell.) Huth).
Updated by: Val Stajsic, 2018-12-03
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Ranunculanae
order Ranunculales
family Ranunculaceae
genus Myosurus
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Myosurus australis in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Myosurus australis in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Murray Scroll Belt present native
Robinvale Plains present native
Murray Fans present native
Goldfields present native
Central Victorian Uplands present native

State distribution

Distribution map
Western Australia
South Australia
New South Wales
Australian Capital Territory