viola arvensis, arabidopsis thaliana, capsella bursa-pastoris, poa annua, stellaria media, tripleurospermum inodorum, apera spica-venti, aphanes arvensis, arenaria serpyllifolia, chenopodium album, draba verna, myosurus minimus, papaver rhoeas, veronica agrestis, veronica persica, veronica polita, lamium amplexicaule, lycopsis arvensis, roemeria argemone, senecio vulgaris