Id plant given to me no name

Owosso, MI(Zone 5b)

Never knew the name of this flowering plant has yellow flowers and very invasive, spreading all over my bed.
I’ve been recently putting it out too invasive and it has a very shallow root system.
Please ID.

Thumbnail by ryguy319
San Francisco, CA

It could be the native celadine poppy - Stylophorum diphyllum.
I have only seen this grown as a garden plant on the West Coast so I am not familiar with it in its naive habitat.
While we value it as a pretty woodland garden plant, I could see how it might be too enthusiastic. As you noted, it is easy to pull, and does not resprout from the roots. A pre-emergent herbicide would reduce the number of seedlings if you wanted to lighten your weeding work.

This message was edited May 10, 2023 9:29 AM

Dearborn Heights, MI(Zone 6a)

That's it! https://davesgarden.com/guides/pf/go/1014/

Bretten, Germany

I think it's Chelidonium majus.

Dearborn Heights, MI(Zone 6a)

suse, I agree now that I looked up Chelidonium majus.
https://davesgarden.com/guides/pf/go/496/

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