medicago lupulina, arenaria serpyllifolia, cerastium glutinosum, ceratodon purpureus, arrhenatherum elatius, bromus tectorum, capsella bursa-pastoris, equisetum arvense, erigeron canadensis, lepidium virginicum, anthemis arvensis, daucus carota, digitaria sanguinalis, epilobium tetragonum, geranium columbinum, linaria vulgaris, verbascum phlomoides, veronica arvensis, viola arvensis, erigeron annuus