digitaria sanguinalis, eragrostis minor, chenopodium album, digitaria ischaemum, picea abies, polygonum aviculare, setaria viridis, anchusa officinalis, artemisia vulgaris, capsella bursa-pastoris, convolvulus arvensis, euphorbia peplus, galinsoga parviflora, lepidium ruderale, malva neglecta, pilosella officinarum, plantago major, silene latifolia, spergula arvensis, trifolium repens