Rorippa Palustris, Marsh Yellow Cress



Common name:
Marsh yellow cress
Scientific name:
Rorippa palustris
Main flower color:
Range:
All of the British Isles except the Scottish Highlands
Height:
Up to 50 cm
Habitat:
Damp grassland, margins of lakes and ponds
Flowers:
Four small yellow petals, around 2 mm long, and four wider sepals, equal in length to the petals. In dense terminal clusters
Fruit:
Slightly curved cylindrical pods, relatively short (up to 10 mm) and thick, with a residual style at the tip. Attached by shorter stalks
Leaves:
Pinnately lobed, with a large terminal lobe and narrower pairs of toothed lateral lobes. Attached by reddish petioles to the ridged, red stem
Season:
June to October
Rarity:
★★★★★