verbascum densiflorum, bromus tectorum, erigeron canadensis, echium vulgare, elymus repens, agrostis stolonifera, amaranthus retroflexus, arenaria serpyllifolia, artemisia vulgaris, capsella bursa-pastoris, carduus acanthoides, chaenorhinum minus, chenopodium album, cirsium vulgare, convolvulus arvensis, crepis foetida, daucus carota, lactuca serriola, leontodon hispidus, lysimachia arvensis, matricaria discoidea, reseda lutea