dysphania botrys, erigeron canadensis, senecio viscosus, chenopodium album, bassia scoparia, eragrostis minor, persicaria lapathifolia, achillea millefolium, amaranthus albus, artemisia vulgaris, bromus hordeaceus, bromus tectorum, cirsium arvense, crepis foetida, digitaria sanguinalis, picris hieracioides, poa compressa, polygonum aviculare, sisymbrium altissimum, sonchus oleraceus, tripleurospermum inodorum