This plant with a somewhat woody stem has arrived in my garden, next to my anemone nemorosa Wyatt's pink. I think I should pull it out. What do you think?
Please be patient the flower bud will soon be open. Possibly Cardamine sp...time will tell. Maybe....Cardamine heptaphylla. cardamine heptaphylla - Google Search I have turned your pic. Anemone doesn't look very pink.
The anemones turn pink later after coming up white. Yes is could be cardamine haptaphylla, maybe it came with the anemone, and didn't come up before though the anemone was planted in 2020.