polygonum aviculare, atriplex patula, capsella bursa-pastoris, galinsoga parviflora, portulaca oleracea, amaranthus retroflexus, ballota nigra, daucus carota, echinochloa crus-galli, eragrostis minor, fallopia convolvulus, setaria viridis, silene latifolia, sonchus oleraceus, erigeron canadensis, reseda lutea