text: euphorbia peplus, erigeron canadensis, stellaria media, capsella bursa-pastoris, elymus repens, erigeron annuus, euphorbia helioscopia, falcaria vulgaris, galinsoga parviflora, hordeum murinum, lepidium campestre, lepidium draba, malva neglecta, matricaria chamomilla, oxalis stricta, poa annua, polygonum aviculare, ranunculus repens, senecio vernalis, setaria pumila, spergula arvensis, viola arvensis