ambrosia artemisiifolia, arctium lappa, ballota nigra, polygonum aviculare, urtica dioica, agrostis stolonifera, carex hirta, chelidonium majus, convolvulus arvensis, erigeron canadensis, lolium perenne, poa pratensis, urtica urens, capsella bursa-pastoris, galeopsis pubescens, malva neglecta, matricaria discoidea, persicaria maculosa, phleum pratense, artemisia vulgaris, galinsoga parviflora, lepidium virginicum, matricaria chamomilla, medicago lupulina, ranunculus sardous, sisymbrium officinale, solanum villosum, sonchus oleraceus, trifolium hybridum