mercurialis annua, stellaria media, tripleurospermum inodorum, artemisia vulgaris, capsella bursa-pastoris, chelidonium majus, convolvulus arvensis, elymus repens, erysimum cheiranthoides, geranium robertianum, lolium perenne, persicaria maculosa, poa annua, poa pratensis, solanum nigrum, veronica persica