centaurea cyanus, matricaria chamomilla, thlaspi arvense, arabidopsis thaliana, delphinium consolida, descurainia sophia, elymus repens, lamium purpureum, buglossoides arvensis, chenopodiastrum hybridum, chenopodium album, cirsium arvense, convolvulus arvensis, galeopsis tetrahit, galium aparine, geranium pusillum, papaver rhoeas, silene latifolia, veronica hederifolia, vicia tetrasperma, viola arvensis, rumex obtusifolius