text: apera spica-venti, elymus repens, erigeron canadensis, filago arvensis, holosteum umbellatum, viola arvensis, crepis tectorum, senecio vernalis, trifolium arvense, veronica arvensis, arabidopsis thaliana, ceratodon purpureus, chenopodium album, fallopia convolvulus, hypochaeris radicata, rumex acetosella, vicia hirsuta, galium mollugo, roemeria argemone