agrostis capillaris, ceratodon purpureus, elymus repens, eragrostis minor, amaranthus albus, anthemis arvensis, artemisia vulgaris, berteroa incana, capsella bursa-pastoris, centaurea jacea, convolvulus arvensis, daucus carota, erigeron canadensis, fallopia convolvulus, gemmabryum caespiticium, lepidium densiflorum, lepidium ruderale, lolium giganteum, medicago lupulina, poa compressa, polygonum aviculare, setaria pumila, syntrichia ruralis, trifolium arvense