atriplex tatarica, amaranthus hybridus, amaranthus retroflexus, convolvulus arvensis, cynodon dactylon, erigeron canadensis, lepidium ruderale, malva pusilla, matricaria chamomilla, medicago lupulina, poa annua, polygonum aviculare, portulaca oleracea, sisymbrium officinale, trifolium repens, xanthium spinosum