text: anthoxanthum aristatum, arnoseris minima, apera spica-venti, capsella bursa-pastoris, cerastium holosteoides, chenopodium album, elymus repens, equisetum arvense, erigeron canadensis, fallopia convolvulus, holcus lanatus, persicaria lapathifolia, poa annua, raphanus raphanistrum, rumex acetosella, spergula morisonii, vicia hirsuta, vicia sativa