arabidopsis thaliana, stellaria media, veronica hederifolia, veronica triphyllos, holosteum umbellatum, lamium amplexicaule, polygonum aviculare, senecio vulgaris, vicia hirsuta, centaurea cyanus, chenopodium album, cirsium arvense, convolvulus arvensis, cynodon dactylon, gagea arvensis, geranium pusillum, lamium purpureum, neslia paniculata, ornithogalum refractum, papaver rhoeas, polycnemum arvense, scleranthus annuus, thlaspi arvense