elymus repens, poa pratensis, scleranthus annuus, apera spica-venti, arabidopsis thaliana, capsella bursa-pastoris, centaurea cyanus, draba verna, erigeron canadensis, fallopia convolvulus, setaria viridis, trifolium arvense, tripleurospermum inodorum, vicia hirsuta, viola arvensis, crepis tectorum, trifolium campestre, vicia cracca