convolvulus arvensis, crepis foetida, hordeum murinum, lolium perenne, medicago lupulina, arenaria serpyllifolia, artemisia vulgaris, atriplex patula, ballota nigra, carduus nigrescens, erigeron canadensis, erodium cicutarium, setaria viridis, sisymbrium orientale, torilis arvensis, tragopogon dubius, lactuca serriola, stellaria media