elymus repens, centaurea diffusa, ambrosia artemisiifolia, eragrostis minor, polygonum aviculare, amaranthus retroflexus, echium vulgare, erigeron canadensis, cichorium intybus, convolvulus arvensis, crepis foetida, lactuca serriola, plantago lanceolata, setaria viridis, acer negundo, achillea nobilis, ailanthus altissima, chenopodiastrum murale, portulaca oleracea