Polylectic: British pollen sources not known, but probably polylectic.
In Germany, the species is polylectic, Westrich (1989) lists Cirsium arvense, Cirsium palustre (Asteraceae); Lythrum salicaria (Lythraceae); Rubus fruticosus, Rubus idaeus, Potentilla sp. (Rosaceae) and Scrophularia nodosa (Scrophulariaceae) as pollen sources.
Monsevicius (2004) lists Jasione montana (Campanulaceae) as a forage source in Lithuania.