chenopodium album, amaranthus albus, dysphania botrys, erigeron canadensis, hordeum murinum, lolium rigidum, polygonum aviculare, solanum nigrum, amaranthus retroflexus, bromus tectorum, capsella bursa-pastoris, lepidium draba, medicago lupulina, plantago major, senecio vulgaris, setaria viridis, sisymbrium officinale, tribulus terrestris