Flora of Northern Ireland : Erysimum cheiranthoides

Erysimum cheiranthoides L.

Treacle Mustard

Description: A rare alien yellow-flowered crucifer of waste or disturbed ground.

All names: Erysimum cheiranthoides L.

Erysimum cheiranthoides : Interactive Map

Distribution Map from NBN: Erysimum cheiranthoides at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Erysimum cheiranthoides at iNaturalist World Species Observations database.

Hackney, P., 2026. Erysimum cheiranthoides. L.. [In] Flora of Northern Ireland.
https://habitas.org/flora/species.php?item=2903. Accessed on 2026-11-02.