draba verna, arabidopsis thaliana, poa bulbosa, tripleurospermum inodorum, veronica triphyllos, capsella bursa-pastoris, descurainia sophia, echium vulgare, erodium cicutarium, herniaria glabra, lamium purpureum, lolium perenne, medicago lupulina, poa annua, sagina procumbens, stellaria media, viola arvensis, echinochloa crus-galli, eryngium campestre, lactuca serriola