chenopodium album, amaranthus hybridus, echinochloa crus-galli, elymus repens, persicaria lapathifolia, cirsium arvense, galium aparine, carduus acanthoides, dipsacus laciniatus, lamium purpureum, matricaria chamomilla, setaria pumila, sonchus asper, thlaspi arvense, erigeron canadensis