chenopodium album, elymus repens, hordeum murinum, polygonum aviculare, sisymbrium officinale, erigeron canadensis, plantago major, poa annua, achillea millefolium, apera spica-venti, artemisia vulgaris, atriplex patula, ballota nigra, bromus hordeaceus, capsella bursa-pastoris, erodium cicutarium, geranium pusillum, lolium perenne, malva neglecta, persicaria maculosa, plantago lanceolata, poa pratensis, rumex acetosella, solanum nigrum, sonchus oleraceus, stellaria media