erigeron canadensis, setaria viridis, amaranthus retroflexus, atriplex patula, chenopodium album, convolvulus arvensis, crepis foetida, digitaria sanguinalis, echinochloa crus-galli, elymus repens, fallopia convolvulus, lactuca serriola, lathyrus tuberosus, linaria vulgaris, medicago lupulina, tanacetum vulgare, trifolium arvense