medicago sativa, verbena officinalis, capsella bursa-pastoris, elymus repens, erigeron canadensis, setaria viridis, thlaspi arvense, achillea millefolium, erodium cicutarium, euphorbia peplis, lamium purpureum, chenopodium album, convolvulus arvensis, lolium perenne, plantago major, rumex obtusifolius, veronica persica