Polylectic with a preference for Fabaceae (e.g. Onobrychis); additional pollen sources include Campanulaceae, Brassicaceae, Asteraceae (Asteroideae and Cichorioideae) and Lamiaceae (based on Rozen et al. (2010) and on 5 additional pollen samples from 5 different localities (A. Müller, unpublished)).