amaranthus retroflexus, ballota nigra, solanum nigrum, chenopodium album, lolium perenne, plantago lanceolata, achillea millefolium, arctium lappa, chenopodiastrum hybridum, daucus carota, erigeron canadensis, persicaria maculosa, ranunculus bulbosus, setaria pumila, verbena officinalis, xanthium strumarium