euphorbia peplus, sonchus oleraceus, veronica persica, atriplex patula, erysimum cheiranthoides, poa annua, argentina anserina, atriplex prostrata, chenopodium album, cirsium arvense, euphorbia helioscopia, geranium molle, persicaria maculosa, plantago major, polygonum aviculare, ranunculus repens, senecio vulgaris, sonchus asper, stellaria media, tussilago farfara