oxalis stricta, poa annua, atriplex patula, ballota nigra, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, digitaria sanguinalis, elymus repens, erigeron annuus, erigeron canadensis, galinsoga parviflora, galium humifusum, geranium pusillum, hordeum murinum, inula britannica, lepidium draba, lolium perenne, medicago lupulina, persicaria maculosa, plantago major, polygonum aviculare, potentilla reptans, ranunculus repens, salvia verticillata, setaria viridis, sonchus arvensis, sonchus oleraceus, stellaria media