Established at the eastern entrance to Agecroft Colliery (SD8000, DP Earl, 1991)
growing with Cochlearia danica (Danish Scurvy-grass); roadside near Clifton
Tip (SD7902, DP Earl & SP Toone, 2003).
Note the record from the A57, Hollins Green (SJ7091, DP Earl & P Bowdler,
2010) just within the Warrington Borough.