sonchus asper, veronica agrestis, capsella bursa-pastoris, senecio vulgaris, sonchus oleraceus, thlaspi arvense, barbula unguiculata, equisetum arvense, erigeron canadensis, euphorbia helioscopia, poa annua, stellaria media, tortula truncata, calystegia sepium, cardamine hirsuta, chenopodium album, elymus repens, euphorbia peplus, lolium perenne, persicaria amphibia, plantago major, veronica polita