tussilago farfara, cirsium arvense, erigeron canadensis, hyoscyamus niger, arenaria serpyllifolia, artemisia vulgaris, atriplex patula, capsella bursa-pastoris, carduus acanthoides, chenopodium album, convolvulus arvensis, elymus repens, epilobium tetragonum, achillea millefolium, ballota nigra, chaenorhinum minus, chenopodiastrum hybridum, galium aparine, melilotus albus, oenothera biennis, papaver somniferum, poa pratensis, poa trivialis, rumex crispus, sisymbrium altissimum, solanum nigrum, sonchus arvensis, tanacetum vulgare, tripleurospermum inodorum