Description: Nearly all the reports of this plant are from the early nineteenth century. It was described as common about Carrickfergus in 1808 and there are other records from Kilrea, Larne and Belfast. It seems to have become extinct by 1888, but there are two recent records from the Belfast area. Perhaps native to some parts of the British Isles but probably an introduced species in Northern Ireland.

All names: Brassica nigra (L.) Koch; Sinapis nigra L.

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

iNaturalist: Brassica nigra at iNaturalist World Species Observations database.