scleranthus annuus, apera spica-venti, aphanes arvensis, arabidopsis thaliana, arenaria serpyllifolia, chenopodium album, draba verna, fallopia convolvulus, myosotis stricta, ornithopus perpusillus, papaver dubium, raphanus raphanistrum, rumex acetosella, setaria viridis, trifolium arvense, veronica arvensis, veronica dillenii, viola arvensis, viola tricolor, anthemis arvensis