echinochloa crus-galli, agrostis gigantea, artemisia vulgaris, echium vulgare, eragrostis pectinacea, panicum capillare, persicaria lapathifolia, plantago lanceolata, setaria viridis, xanthium strumarium, ambrosia artemisiifolia, amorpha fruticosa, bidens frondosa, calamagrostis pseudophragmites, daucus carota, diplotaxis tenuifolia, erigeron annuus, erigeron canadensis, eupatorium cannabinum, hypericum perforatum, lysimachia arvensis, medicago lupulina, oenothera biennis, plantago major, plantago uliginosa, poa annua, polygonum aviculare, populus canadensis, scabiosa triandra, setaria pumila, veronica anagallis-aquatica, picris hieracioides, prunella grandiflora