text: ceratodon purpureus, elymus repens, senecio vernalis, viola arvensis, aphanes arvensis, cerastium holosteoides, erigeron canadensis, lactuca serriola, veronica arvensis, agrostis capillaris, convolvulus arvensis, crepis tectorum, filago arvensis, hypochaeris radicata, vicia hirsuta, vicia sativa, arabidopsis thaliana, artemisia vulgaris