galinsoga parviflora, amaranthus retroflexus, chenopodium album, calystegia sepium, digitaria sanguinalis, setaria pumila, arenaria serpyllifolia, capsella bursa-pastoris, daucus carota, echinochloa crus-galli, erigeron annuus, erigeron canadensis, euphorbia helioscopia, medicago lupulina, polygonum aviculare, sonchus oleraceus, trifolium repens, chaenorhinum minus, silene vulgaris, sonchus arvensis