text: echinochloa crus-galli, oxybasis rubra, chenopodium album, convolvulus arvensis, elymus repens, galinsoga parviflora, lolium perenne, setaria viridis, stellaria media, viola arvensis, capsella bursa-pastoris, erodium cicutarium, galeopsis tetrahit, matricaria chamomilla, persicaria lapathifolia, persicaria maculosa, plantago uliginosa, poa annua, polygonum aviculare, solanum nigrum, urtica urens, galinsoga quadriradiata