arabidopsis thaliana, ranunculus sardous, rumex acetosella, stellaria media, veronica hederifolia, vicia sativa, alopecurus myosuroides, apera spica-venti, arnoseris minima, capsella bursa-pastoris, centaurea cyanus, cirsium arvense, equisetum arvense, gnaphalium uliginosum, matricaria chamomilla, myosurus minimus, plantago major, polygonum aviculare, ranunculus repens, roemeria argemone, scleranthus annuus, veronica arvensis, viola arvensis