hordeum murinum, cirsium arvense, erigeron canadensis, artemisia vulgaris, calamagrostis epigejos, convolvulus arvensis, crepis foetida, erodium cicutarium, lolium perenne, medicago lupulina, medicago minima, reseda lutea, rosa canina, torilis arvensis, tripleurospermum inodorum, lamium amplexicaule