panicum capillare, erigeron canadensis, achillea setacea, amaranthus blitoides, amaranthus retroflexus, artemisia annua, chenopodium album, cynodon dactylon, digitaria sanguinalis, diplotaxis muralis, eragrostis minor, lepidium ruderale, polygonum aviculare, salsola tragus, setaria pumila, tripleurospermum inodorum