text: holosteum umbellatum, pilosella officinarum, rumex acetosella, apera spica-venti, arabidopsis thaliana, avenella flexuosa, ceratodon purpureus, chondrilla juncea, crepis tectorum, elymus repens, erigeron canadensis, erodium cicutarium, filago arvensis, hypochaeris radicata, potentilla argentea, trifolium arvense, veronica triphyllos, vicia sativa, viola arvensis, senecio vernalis, veronica arvensis, centaurea cyanus, crepis capillaris, lactuca serriola, myosotis stricta, tragopogon pratensis