spergula arvensis, cerastium fontanum, cirsium arvense, polygonum aviculare, ranunculus repens, rumex crispus, euphorbia helioscopia, lysimachia arvensis, persicaria maculosa, argentina anserina, stellaria media, urtica urens, helminthotheca echioides, hypochaeris radicata, lolium perenne, poa annua, senecio vulgaris, stachys arvensis, trifolium repens