poa annua, arrhenatherum elatius, cerastium glomeratum, capsella bursa-pastoris, stellaria media, veronica persica, euphorbia helioscopia, hypochaeris radicata, mercurialis annua, sonchus oleraceus, valerianella locusta, arum italicum, rumex crispus, senecio vulgaris, sonchus asper, trifolium pratense