stellaria media, viola arvensis, apera spica-venti, capsella bursa-pastoris, veronica triphyllos, arabidopsis thaliana, draba verna, lamium amplexicaule, galium aparine, lamium purpureum, lycopsis arvensis, papaver rhoeas, poa annua, rumex crispus, tripleurospermum inodorum, veronica arvensis, veronica hederifolia