text: urtica urens, hordeum murinum, malva neglecta, anacyclus clavatus, capsella bursa-pastoris, chenopodium album, cynodon dactylon, diplotaxis virgata, lamium amplexicaule, polygonum aviculare, solanum nigrum, centaurea calcitrapa, cichorium intybus, convolvulus arvensis, descurainia sophia, erodium cicutarium, heliotropium europaeum, hirschfeldia incana, lactuca serriola, picnomon acarna, reseda phyteuma, sonchus oleraceus