amaranthus powellii, amaranthus retroflexus, capsella bursa-pastoris, carex hirta, conium maculatum, convolvulus arvensis, digitaria sanguinalis, echinochloa crus-galli, elymus repens, erigeron annuus, galeopsis tetrahit, persicaria lapathifolia, ranunculus repens, setaria pumila, tripleurospermum inodorum, artemisia vulgaris, atriplex patula, matricaria discoidea, pastinaca sativa, sonchus asper, urtica dioica, galium aparine