digitaria sanguinalis, echinochloa crus-galli, erigeron annuus, setaria pumila, chenopodium album, galinsoga parviflora, helianthus tuberosus, mentha arvensis, oxalis stricta, solidago canadensis, amaranthus powellii, atriplex patula, capsella bursa-pastoris, daucus carota, galinsoga quadriradiata, medicago lupulina, panicum capillare, persicaria maculosa, plantago major, polygonum aviculare, ranunculus repens, raphanus raphanistrum, rorippa sylvestris, trifolium pratense, tripleurospermum inodorum