On waste ground and in beds where soil has been imported.
J F Robinson 1902: "Sutton on Hull (J.W.Boult). An abundant alien at the Hull docks."
Herbarium material: HLU : Hull 1933 {A K Wilson}; Cottingham 1952 {R Good}. HLL : Hull 1937 {A K Wilson}. HUM : Sutton 1889 {J R Waller}.
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