text: ceratodon purpureus, apera spica-venti, capsella bursa-pastoris, elymus repens, fallopia convolvulus, myosotis arvensis, odontites vernus, polygonum aviculare, rumex acetosella, scleranthus annuus, trifolium arvense, trifolium campestre, valerianella dentata, veronica arvensis, vicia sativa, viola arvensis, erigeron canadensis, galeopsis ladanum, lapsana communis, polycnemum arvense, tripleurospermum inodorum, vicia tetrasperma, arabidopsis thaliana, spergula arvensis, vicia hirsuta