Hi,

What you have there is ground elder, bishop's goutweed (Aegopodium podagraria), sometimes called snow on the mountain when it has white variegation. It's a difficult plant to get rid of once established, so you'll need to have a management plan and know that it may take several years to remove unfortunately.

https://plants.ces.ncsu.edu/plants/aegopodium-podagraria/

While not officially on the Michigan Invasive Species list, states around us classify ground elder as an invasive species.

Having said that, there are only two methods of control: physical removal and use of a non-selective herbicide. Digging out the plants allows you to follow the underground stems (rhizomes) by which the plant spreads, in order to remove daughter plants that have not even broken ground yet. Using an herbicide such as glyphosate must be thorough in order to kill the extensive root system below ground. It may take several applications of glyphosate to completely eradicate the plants. Glyphosate applications are also more effective in the fall when the plant is naturally moving sugars to the roots for winter storage. This moves the herbicide to the roots as well, causing a more noticeable effect. Also, be sure that the product you purchase contains either glyphosate or triclopyr, many of the Roundup products no longer contain these active ingredient and will not be effective on this plant.

Here are some more resources that will be of help as you make a plan for removal:

https://dnr.wisconsin.gov/topic/Invasives/fact/BishopsGoutweed

https://www.maine.gov/dacf/mnap/features/invasive_plants/aegopodium.html

https://www.canr.msu.edu/news/avoid-herbicide-misuse-at-home-things-to-know-before-you-buy