text: verbascum lychnitis, elymus repens, erigeron canadensis, apera spica-venti, arabidopsis thaliana, ceratodon purpureus, convolvulus arvensis, holosteum umbellatum, senecio vernalis, veronica arvensis, viola arvensis, crepis tectorum, erodium cicutarium, trifolium arvense, vicia hirsuta, vicia sativa, filago arvensis, hypochaeris radicata, roemeria argemone