trifolium arvense, scleranthus annuus, capsella bursa-pastoris, centaurea cyanus, cichorium intybus, cirsium arvense, convolvulus arvensis, cynodon dactylon, daucus carota, erigeron canadensis, filago lutescens, raphanus raphanistrum, setaria pumila, verbena officinalis, veronica hederifolia, vicia cracca, viola tricolor