J F Robinson 1902: "Stoneferry (George Norman) [TA 10 31]; Humber bank."
Herbarium material: HUM : Hessle 19311 {G A Glister}; Hessle 1932 {W L Waugh}; Hessle 1955 {A K Wilson}. HLL : Hessle 1932 {A K Wilson}.
