berteroa incana, erigeron canadensis, lolium perenne, trifolium repens, arctium lappa, artemisia absinthium, artemisia vulgaris, ballota nigra, bromus tectorum, capsella bursa-pastoris, chenopodium album, cichorium intybus, cirsium arvense, daucus carota, hordeum murinum, lactuca serriola, malva neglecta, matricaria discoidea, medicago lupulina, plantago lanceolata, plantago major, polygonum aviculare, scorzoneroides autumnalis, silene latifolia, sonchus oleraceus, tripleurospermum inodorum, tussilago farfara