xanthium strumarium, artemisia vulgaris, persicaria lapathifolia, verbascum blattaria, achillea millefolium, agrostis stolonifera, althaea officinalis, amaranthus retroflexus, atriplex tatarica, chenopodium album, convolvulus arvensis, erigeron canadensis, mentha aquatica, oxybasis urbica, polygonum aviculare