Flowering Plants Visited
by Osmia cornifrons
Osmia cornifrons Radoszkowski: Megachilidae (Osmiini), Hymenoptera
(observations are from Steury et al. and Wilhelm & Rericha as indicated below)
Berberidaceae: Jeffersonia diphylla cp (WR); Boraginaceae: Lithospermum canescens sn (WR); Brassicaceae: Dentaria laciniata sn (WR); Liliaceae: Erythronium albidum (WR), Narcissus pseudonarcissus (WR), Trillium nivale sn (WR); Rosaceae: Pyrus calleryana (SDO), Rubus alumnus (WR); Violaceae: Viola × wittrockiana sn (WR)