galinsoga parviflora, setaria viridis, amaranthus retroflexus, amaranthus powellii, chenopodium album, cirsium arvense, convolvulus arvensis, crepis foetida, digitaria sanguinalis, echinochloa crus-galli, elymus repens, lactuca serriola, polygonum aviculare, sonchus oleraceus, stellaria media