achillea millefolium, agrostis gigantea, amaranthus retroflexus, artemisia campestris, artemisia vulgaris, brassica rapa, calamagrostis epigejos, capsella bursa-pastoris, chenopodium album, cichorium intybus, convolvulus arvensis, digitaria ischaemum, echinochloa crus-galli, echium vulgare, elymus repens, equisetum arvense, erigeron canadensis, lepidium ruderale, medicago lupulina, melilotus albus, oxybasis glauca, plantago major, polygonum aviculare, populus nigra, setaria viridis, sonchus arvensis, stachys annua, tanacetum vulgare, trifolium repens, tripleurospermum inodorum