Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Araceae ⟩ Wolffia arrhiza / rootless duckweed

Wolffia arrhiza (L.) Horkel ex Wimm.

rootless duckweed (Araceae)

 SpreadBias within British IslesDirection of bias
LocalVery strong tendencySE
Plant Atlas 2020
BSBI Distribution Map

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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