Plant ID request
I believe this is Croton glandulosus, in the Euphorbia family. It's a native plant, so hopefully it will behave itself! https://www.wildflower.org/plants/result.php?id_plant=CRGL2
Alice,. Many thanks. Accidentally I posted my question twice and both answers agreed. This is spreading madly through the 1/8 acre meadow just started this year. Also elsewhere that I'm not concerned about. I'm not sure how much effort I should take against it in the meadow which is first season.