Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Brassicaceae / Cruciferae ⟩ Rorippa palustris / marsh yellow-cress

Rorippa palustris (L.) Besser

marsh yellow-cress (Brassicaceae / Cruciferae)

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

Rorippa palustris has flowers with petals hardly longer than the sepals; it is more common than Rorippa islandica.

Stanton St. John (VC23: Oxfordshire); 2015-06-01

 marsh yellow-cress / Rorippa palustris: _Rorippa palustris_ has flowers with petals hardly longer than the sepals; it is more common than _Rorippa islandica_.

The mature fruits of Rorippa palustris are held erect or patent, not reflexed as in Rorippa islandica.

Oxford (VC23: Oxfordshire); 2015-06-25

 marsh yellow-cress / Rorippa palustris: The mature fruits of _Rorippa palustris_ are held erect or patent, not reflexed as in _Rorippa islandica_.

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