amaranthus retroflexus, chenopodium album, chenopodium ficifolium, convolvulus arvensis, galinsoga parviflora, mercurialis annua, oxybasis glauca, senecio vulgaris, amaranthus powellii, capsella bursa-pastoris, cirsium arvense, elymus repens, euphorbia helioscopia, rorippa sylvestris, sinapis arvensis, stellaria media, urtica urens