This map has been generated by Mapmate 03/01/2012

Increasing in frequency as a colonist of bare ground and pavements. Records from the 1991-1992 survey included: old ballast by Ship Canal, Irlam (SJ7192); the old road by A57 Peel Green (SJ7497); between the pebbles at New Lane petrol station (SJ7598); locally abundant on old railway sidings and walls in the Agecroft/Brindle Heath area; with Trifolium arvense at Buile Hill Park tennis courts (SJ7999).