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.
More Wildflowers Questions
Source for seeds of Mexican primrose from Dallas April 25, 2013 - Can I purchase Mexican Evening Primrose seeds now for planting in the fall or do I need to wait for the fresh crop of seeds that will be gathered from this spring flowering. How can I be assured the ... view the full question and answer
Can you produce hay and bluebonnets on the same field? March 03, 2010 - Hi - We have a field that produces wild bluebonnets every spring. Is it possible to grow and bail hay in this field and not kill off our bluebonnets? Thank you.
view the full question and answer
Native wildflowers for Northern Indiana May 08, 2007 - I had the wonderful opportunity to visit the Lady Bird Johnson Wildflower Center
on Saturday April 21. What a beautiful place. I thoroughly enjoyed my visit. I was
wondering how I could find out w... view the full question and answer
Why are our Bluebonnets turning brown? January 28, 2009 - Our Texas Bluebonnets are turning brown and appear to be dying. We've had them going for 5 or 6 years and have never seen this. I found a few small worms on one plant but can't seem to find them a... view the full question and answer
Culture and location of native Stachys coccinea May 10, 2006 - What are the soil, light, and water requirements for Texas betony (Stachys coccinea) and in what area(s) of Texas does it naturally occur? view the full question and answer