brassica napus, tripleurospermum inodorum, centaurea cyanus, myosotis arvensis, apera spica-venti, equisetum arvense, stellaria media, aphanes arvensis, capsella bursa-pastoris, draba verna, papaver rhoeas, polygonum aviculare, rumex acetosella, scleranthus annuus, silene latifolia, thlaspi arvense, veronica arvensis, vicia hirsuta, viola arvensis