text: ceratodon purpureus, hypochaeris radicata, rumex acetosella, erigeron canadensis, filago arvensis, holosteum umbellatum, scleranthus annuus, trifolium arvense, veronica triphyllos, viola arvensis, apera spica-venti, arabidopsis thaliana, avenella flexuosa, crepis tectorum, elymus repens, erodium cicutarium, helichrysum arenarium, potentilla argentea, spergula morisonii, bromus tectorum, senecio vernalis