zea mays, apera spica-venti, cirsium arvense, elymus repens, equisetum arvense, matricaria chamomilla, phleum pratense, capsella bursa-pastoris, lapsana communis, thlaspi arvense, triticum aestivum, valerianella dentata, viola arvensis, galium aparine, lamium purpureum, poa pratensis