Lemna trisulca L.

Ivy-leaf Duckweed

Sp. Pl. 970 (1753) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: data deficient (k)

Roots absent (in Victoria). Thallus suspended below water surface, except when flowering or fruiting, narrowly ovate to narrowly oblong, 2–8 mm long, thin and translucent greenish; veins not visible, midvein sometimes indistinct; base narrowed to a distinct stalk 1–13 mm long; apex obtuse to obliquely truncate or broadly emarginate and slightly irregular or minutely toothed. Colony made up of generations at 90° to the previous one.

DunT, GipP, Glep, GGr, OtP, VVP, WaP, WPro. SA, Qld, NSW, ACT, Tas. North America, Eurasia, Africa.

Source: Conn, B.J. (1994). Lemnaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-03-28
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Alismatales
family Araceae
genus Lemna
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Lemna trisulca in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Lemna trisulca in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Glenelg Plain present native
Victorian Volcanic Plain present native
Gippsland Plain present native
Otway Plain present native
Warrnambool Plain present native
Greater Grampians present native
Dundas Tablelands present native
Wilsons Promontory present native

State distribution

Distribution map
South Australia
New South Wales
Australian Capital Territory