Celandine poppy has leaves that are a bit hairy, dull in color and dissected.
From the washingtonpost.com
The celandine poppy prefers a rich, organic woodland soil but does not need as much water as the marsh marigold to thrive.
From the al.com
It hugs the ground and rarely grows taller than six inches, while the native plant, the celandine poppy, can reach three feet in favorable conditions.
From the washingtonpost.com
Another feature is that once the heat of summer arrives, the celandine poppy will go dormant, preferring a long nap to competing with the trees for water and nutrients.