Pictorial guide to the flora of the British Isles

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Lemna minor L.

common duckweed (Araceae)

 SpreadBias within British IslesDirection of bias
Very widespreadNegligible tendencyS
Plant Atlas 2020
BSBI Distribution Map

Lemna minor is our most widespread duckweed; with fronds are up to 8 mm long, with 3 faint veins, it is larger than Lemna minuta.

Oxford (VC23: Oxfordshire); 2012-07-15

 common duckweed / Lemna minor: _Lemna minor_ is our most widespread duckweed; with fronds are up to 8 mm long, with 3 faint veins, it is larger than _Lemna minuta_.

On the underside, each frond of Lemna minor has a single rootlet that dangles into the water.

Oxford (VC23: Oxfordshire); 2012-07-15

 common duckweed / Lemna minor: On the underside, each frond of _Lemna minor_ has a single rootlet that dangles into the water.

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne