poa annua, arctium minus, lolium perenne, matricaria chamomilla, matricaria discoidea, polygonum aviculare, urtica urens, ambrosia artemisiifolia, capsella bursa-pastoris, cynodon dactylon, galinsoga parviflora, lycopus europaeus, medicago lupulina, carex hirta, carex spicata, juncus compressus, malva neglecta, trifolium hybridum, trifolium repens, urtica dioica, erigeron annuus, lepidium virginicum, lolium pratense, plantago major, plantago uliginosa, potentilla supina, ranunculus sardous, sonchus oleraceus, verbena officinalis, veronica serpyllifolia