triticum aestivum, apera spica-venti, convolvulus arvensis, achillea millefolium, bromus hordeaceus, capsella bursa-pastoris, cirsium arvense, elymus repens, fallopia convolvulus, medicago lupulina, papaver rhoeas, poa pratensis, roemeria argemone, silene latifolia, stellaria media, vicia hirsuta, vicia tetrasperma