lolium perenne, agrostis capillaris, galinsoga parviflora, poa annua, rumex obtusifolius, veronica serpyllifolia, capsella bursa-pastoris, cerastium holosteoides, daucus carota, erigeron canadensis, plantago major, potentilla erecta, rumex acetosella, spergula arvensis, stellaria media, trifolium repens