lactuca serriola, polygonum aviculare, agrostis stolonifera, amaranthus powellii, chenopodium album, erigeron annuus, glechoma hederacea, lolium perenne, plantago major, poa trivialis, rumex obtusifolius, trifolium repens, bellis perennis, cerastium holosteoides, chelidonium majus, erigeron canadensis, geranium pusillum, lapsana communis, medicago lupulina, oxalis stricta, persicaria maculosa, picris hieracioides, plantago lanceolata, poa annua, potentilla reptans, senecio vulgaris, sisymbrium officinale, solanum nigrum, stellaria media, veronica arvensis