Well distributed and often in great quantity, particularly along the banks of the Hull and Humber. This plant seems to have been well distributed by 1938 and Wilson notes occurrences at Stoneferry, Willerby and Cottingham.
J F Robinson 1902: "Near docks, Hull."
Herbarium material: HLU : Hessle foreshore 1929 {G A Glister}. HLL : Hessle 1934 {A K Wilson}.
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