dysphania botrys, artemisia vulgaris, chaenorhinum minus, erigeron canadensis, senecio viscosus, sisymbrium altissimum, achillea millefolium, amaranthus retroflexus, arenaria serpyllifolia, bromus tectorum, cirsium arvense, medicago lupulina, persicaria lapathifolia, tripleurospermum inodorum, tussilago farfara