text: brassica napus, chenopodium album, convolvulus arvensis, equisetum arvense, galeopsis tetrahit, myosotis arvensis, solanum tuberosum, thlaspi arvense, achillea virescens, capsella bursa-pastoris, euphorbia helioscopia, galium spurium, lycopsis arvensis, lysimachia vulgaris, mentha arvensis, persicaria maculosa, raphanus raphanistrum, stellaria media, veronica arvensis, vicia cracca, viola arvensis