brassica napus, tripleurospermum inodorum, draba verna, thlaspi arvense, capsella bursa-pastoris, cerastium glomeratum, elymus repens, papaver rhoeas, polygonum aviculare, stellaria media, veronica persica, viola arvensis, equisetum arvense, lamium purpureum, myosotis arvensis, poa annua, rumex obtusifolius, sherardia arvensis