text: ceratodon purpureus, erigeron canadensis, holosteum umbellatum, logfia minima, spergula morisonii, avenella flexuosa, filago arvensis, helichrysum arenarium, hypochaeris radicata, pilosella officinarum, pinus sylvestris, scleranthus annuus, trifolium arvense, veronica triphyllos, viola arvensis, arabidopsis thaliana, convolvulus arvensis, crepis tectorum, senecio vernalis, apera spica-venti, chenopodium album, erodium cicutarium, myosotis stricta, veronica arvensis