Lemna disperma Hegelm.

Common Duckweed

Bot. Jahrb. 21: 290 (1896) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native


Lemna minor sensu J.H. Willis has widely been misapplied to this species in Victoria.

Root single. Thallus floating on water surface, elliptic to rounded or broadly obovate, 1–4 mm long, slightly swollen, green above, if red underneath then reddening beginning from margin, opaque; air spaces in 2 or 3 layers spread throughout thallus, with largest ones mostly longer than 0.3 mm long; veins 3–5, emerging from same point at node; base with stalk indistinct; apex rounded. Colony made up of generations at angles less than 90° to the previous one.

Brid, CVU, DunT, EGL, GipP, Gold, GGr, HSF, MuF, NIS, OtP, Strz, VRiv, VVP, WaP, Wim. Also WA, SA, NSW, Tas. New Zealand.

See note under Lemna minor.

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 disperma in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Lemna disperma in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Wimmera present native
Bridgewater present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Murray Fans present native
Gippsland Plain present native
Otway Plain present native
Warrnambool Plain present native
Goldfields present native
Central Victorian Uplands present native
Greater Grampians present native
Dundas Tablelands present native
Northern Inland Slopes present native
East Gippsland Lowlands present native
Highlands-Southern Fall present native
Strzelecki Ranges present native

State distribution

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