setaria pumila, convolvulus arvensis, amaranthus retroflexus, atriplex patula, ballota nigra, chelidonium majus, chenopodium album, cirsium arvense, cynodon dactylon, daucus carota, erigeron canadensis, malva sylvestris, polygonum aviculare, potentilla reptans, setaria viridis, silene latifolia, trifolium pratense