text: solanum nigrum, echinochloa crus-galli, mentha arvensis, persicaria maculosa, poa annua, atriplex patula, chenopodium album, capsella bursa-pastoris, elymus repens, stellaria media, urtica urens, galium aparine, lamium purpureum, poa trivialis, rumex obtusifolius, trifolium repens