eragrostis cilianensis, digitaria sanguinalis, portulaca oleracea, amaranthus retroflexus, amaranthus hybridus, ambrosia artemisiifolia, artemisia vulgaris, ballota nigra, capsella bursa-pastoris, chenopodiastrum hybridum, chenopodium album, cynodon dactylon, elymus repens, erigeron canadensis, galinsoga parviflora, geranium pusillum, polygonum aviculare, robinia pseudoacacia, setaria viridis, stellaria media