rorippa palustris, arctium tomentosum, artemisia vulgaris, chenopodium album, cirsium arvense, polygonum aviculare, galium spurium, lepidium ruderale, poa annua, tanacetum vulgare, amaranthus retroflexus, artemisia abrotanum, capsella bursa-pastoris, elymus repens, medicago lupulina, plantago major, poa compressa, thlaspi arvense, trifolium pratense, tripleurospermum inodorum