polygonum aviculare, beta vulgaris, matricaria chamomilla, mercurialis annua, senecio vulgaris, aethusa cynapium, chenopodium album, echinochloa crus-galli, sonchus oleraceus, atriplex patula, capsella bursa-pastoris, elymus repens, erigeron canadensis, galinsoga quadriradiata, lolium multiflorum, persicaria maculosa, senecio inaequidens, sonchus asper, dactylis glomerata, veronica hederifolia