Prohibited plants newly found in Door County including Clark Lake

While on a Buffer Buddy site visit on the south shore of Clark Lake, the conservationist noted an unusual plant.  Further investigation revealed this to be Johsongrass which is prohibited by the state and listed as one of the top ten invasive problem plants in the US. It used to be legal to sell and the assumption is that the current patch came from a nursery years ago as an ornamental addition to the yard. The patch has been treated and will be monitored by the county and DNR.  They are also surveying for any other patches in our area.


Another prohibited species, European frog bit, was noted in southern Door and a search throughout the county is underway.  This is a small lily pad type plant.

Photos and details can be found in the July 2022 Newsletter at the DCIST Website