veronica persica, capsella bursa-pastoris, fumaria officinalis, plantago major, arabidopsis thaliana, arenaria serpyllifolia, ballota nigra, hordeum vulgare, lamium purpureum, papaver rhoeas, plantago uliginosa, poa annua, rumex acetosa, sisymbrium officinale, stellaria media, veronica arvensis, veronica polita, veronica sublobata, viola arvensis, erigeron canadensis, sonchus arvensis