text: ceratodon purpureus, erigeron canadensis, holosteum umbellatum, hypochaeris radicata, trifolium arvense, viola arvensis, agrostis capillaris, anthemis arvensis, avenella flexuosa, filago arvensis, helichrysum arenarium, jasione montana, pilosella officinarum, setaria viridis, fallopia convolvulus, pinus sylvestris, rumex acetosella, chenopodium album, chondrilla juncea, spergula morisonii, veronica arvensis, vicia sativa