daucus carota, erigeron annuus, picris hieracioides, trifolium repens, lactuca serriola, leontodon hispidus, lotus corniculatus, medicago lupulina, ranunculus bulbosus, setaria viridis, ambrosia artemisiifolia, artemisia vulgaris, cerastium holosteoides, echium vulgare, erigeron canadensis, lepidium virginicum, poa compressa