Cruciferae

Cruciferae

Observation - Cruciferae - UK and Ireland. Description: about 1m tall and glabrous. simple, lanceolate, toothed leaves (some of which had a curious, slightly yellowy hue) which seems to rule out a lot of other possible cabbage candidates including other Rorripa. however, ive not encountered this plant before s

about 1m tall and glabrous. simple, lanceolate, toothed leaves (some of which had a curious, slightly yellowy hue) which seems to rule out a lot of other possible cabbage candidates including other Rorripa. however, ive not encountered this plant before so my ID here is tentative and based on my field guide. it was growing in a marshy area right beside a canal.