polygonum aviculare, euphorbia maculata, arenaria serpyllifolia, digitaria sanguinalis, eragrostis minor, rorippa sylvestris, achillea collina, amaranthus retroflexus, capsella bursa-pastoris, convolvulus arvensis, cynodon dactylon, echinochloa crus-galli, eragrostis pilosa, medicago lupulina, plantago major, portulaca oleracea, taraxacum minimum, trifolium repens