digitaria ischaemum, echinochloa crus-galli, euphorbia helioscopia, achillea millefolium, cirsium arvense, daucus carota, elymus repens, equisetum arvense, erigeron canadensis, lapsana communis, legousia speculum-veneris, lotus corniculatus, polygonum aviculare, setaria pumila, setaria viridis, veronica chamaedrys, veronica persica, vicia sativa, vicia tetrasperma, medicago lupulina