bassia scoparia, chenopodium album, dysphania botrys, erigeron canadensis, oxybasis glauca, persicaria lapathifolia, polygonum aviculare, salsola tragus, senecio viscosus, sisymbrium altissimum, sisymbrium loeselii, tripleurospermum inodorum, amaranthus retroflexus, artemisia vulgaris, cirsium arvense, verbascum phlomoides