brassica nigra, chenopodium album, achillea millefolium, arctium lappa, atriplex patula, amaranthus retroflexus, argentina anserina, ballota nigra, berteroa incana, convolvulus arvensis, deschampsia cespitosa, erigeron canadensis, melilotus officinalis, polygonum aviculare, scorzoneroides autumnalis, sisymbrium officinale