Weeds- why you, as a farmer-florist, should know and care which are noxious

We have noticed an up-tick in our social media feeds of the use of noxious weeds in bouquets and installations.  There have been various rationalizations about their use, including that by "harvesting and using " them, one is controlling their spread.   As a result, we thought we should have a conversation with the experts about how we should approach using plants on the controlled noxious species lists in our work.  Bottom Line: Don't use them!