hordeum murinum, euphorbia helioscopia, bromus sterilis, polygonum aviculare, amaranthus retroflexus, arctium minus, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, lamium amplexicaule, medicago sativa, onopordum acanthium, sisymbrium officinale, trifolium incarnatum, trifolium pratense, urtica dioica, urtica urens