polygonum aviculare, capsella bursa-pastoris, cirsium arvense, cirsium vulgare, cornus sanguinea, erigeron canadensis, papaver rhoeas, plantago lanceolata, populus nigra, pulmonaria obscura, reynoutria japonica, ribes rubrum, robinia pseudoacacia, rorippa sylvestris, stachys sylvatica, symphytum officinale, vicia cracca