viola arvensis, capsella bursa-pastoris, papaver rhoeas, vicia tetrasperma, arabidopsis thaliana, brassica napus, descurainia sophia, elymus repens, euphorbia helioscopia, geranium pusillum, lycopsis arvensis, matricaria chamomilla, myosotis arvensis, thlaspi arvense, veronica arvensis, artemisia vulgaris, lactuca serriola, lamium purpureum, matricaria discoidea, stellaria graminea