amaranthus powellii, galinsoga parviflora, galinsoga quadriradiata, lipandra polysperma, stellaria media, chenopodium album, galium aparine, lamium purpureum, persicaria maculosa, poa annua, capsella bursa-pastoris, cirsium arvense, echinochloa crus-galli, euphorbia helioscopia, oxalis stricta, plantago major, rorippa sylvestris, senecio vulgaris