polygonum aviculare, matricaria discoidea, plantago major, poa annua, lolium perenne, argentina anserina, artemisia vulgaris, capsella bursa-pastoris, chenopodium album, elymus repens, erodium cicutarium, galinsoga parviflora, medicago lupulina, trifolium pratense, trifolium repens, tripleurospermum inodorum