chenopodium album, solanum nigrum, capsella bursa-pastoris, amaranthus albus, amaranthus retroflexus, apera spica-venti, cirsium arvense, cirsium vulgare, elymus repens, erigeron canadensis, heliotropium europaeum, medicago lupulina, melilotus officinalis, oxybasis urbica, polygonum aviculare, stellaria media, thlaspi arvense