stellaria media, artemisia annua, atriplex prostrata, capsella bursa-pastoris, cerastium fontanum, chenopodium album, elymus repens, erigeron annuus, erigeron canadensis, galinsoga parviflora, glechoma hederacea, lactuca serriola, lepidium ruderale, lolium perenne, medicago lupulina, plantago major, poa annua, polygonum aviculare, potentilla reptans, prunella vulgaris, senecio vulgaris, setaria viridis, sonchus oleraceus