lactuca serriola, tripleurospermum inodorum, chenopodium album, descurainia sophia, erigeron canadensis, melilotus albus, artemisia vulgaris, atriplex sagittata, lolium perenne, medicago lupulina, senecio viscosus, sonchus oleraceus, apera spica-venti, bromus sterilis, capsella bursa-pastoris, carduus acanthoides, chenopodium ficifolium, elymus repens, trifolium repens