text: ballota nigra, elymus repens, sonchus arvensis, urtica dioica, ambrosia artemisiifolia, erigeron canadensis, cyclachaena xanthiifolia, lolium perenne, lolium pratense, polygonum aviculare, arctium lappa, arrhenatherum elatius, artemisia campestris, crepis tectorum, daucus carota, echium vulgare, helianthus tuberosus, oenothera biennis, rumex crispus, sisymbrium officinale, trifolium montanum