solanum nigrum, echinochloa crus-galli, mercurialis annua, polygonum aviculare, amaranthus retroflexus, chenopodium album, elymus repens, galinsoga quadriradiata, persicaria maculosa, poa trivialis, senecio vulgaris, artemisia vulgaris, galinsoga parviflora, lamium purpureum, poa annua, urtica urens, viola arvensis, salix cinerea