There are a number of Oenothera species native to Michigan, many of which have yellow flowers but, to my eye, none appear to have the same leaf shape and arrangement as Oenothera flava.
If you believe you've found this plant growing in Michigan, you might consult your state's native plant society to get some experienced botanists to look at it as well. If your identification is confirmed, you can report your finding to the USDA Plants Database and request that the plant's range be updated.
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