Uncommon, usually only a few plants. Most records are for waste ground but it occurs in bark-mulched ground-cover plantings on the Hull University campus [TA 07 31].
J F Robinson 1902: "Common amongst the dock waste plants."
Herbarium material: HLU : Hull 1929 {R Good}; Springhead 1932 {A K Wilson}; Hull 1950 {F E Crackles}; Willerby 1951 {R Good}. HLL : King George Dock, Hull 1936 {A K Wilson}. HUM : Albert Dock, Hull 1898 {Smith}.
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