poa annua, capsella bursa-pastoris, apera spica-venti, stellaria media, viola arvensis, matricaria discoidea, tripleurospermum inodorum, aphanes arvensis, arabidopsis thaliana, arenaria serpyllifolia, draba verna, elymus repens, papaver rhoeas, veronica hederifolia, delphinium consolida, veronica arvensis