text: elymus repens, ceratodon purpureus, trifolium arvense, apera spica-venti, arabidopsis thaliana, erigeron canadensis, erodium cicutarium, filago arvensis, holosteum umbellatum, medicago lupulina, rumex acetosella, vicia hirsuta, artemisia vulgaris, bromus tectorum, centaurea cyanus, convolvulus arvensis, crepis tectorum, fallopia convolvulus, veronica arvensis, viola arvensis, lactuca serriola, potentilla argentea, roemeria argemone, vicia sativa