atriplex sagittata, artemisia vulgaris, ballota nigra, capsella bursa-pastoris, chenopodium album, cirsium arvense, elymus repens, equisetum arvense, erigeron canadensis, galinsoga parviflora, helianthus tuberosus, sinapis arvensis, sisymbrium officinale, solanum nigrum, stellaria media, tripleurospermum inodorum