In 🇨🇦 🇺🇸 North America, do not confuse with very-similar-named (and very-similar-looking!) without-adjective celandine poppy  Stylophorum diphyllum.   Although members of separate genera, both are part of poppy  family Papaveraceae.

And do not confuse either with very-similar-named lesser celandine or fig buttercup  Ficaria verna.   Although together the three species are members of two separate families, all three are part of barberry/​buttercup/​poppy  order Ranunculales.

Native to most of Europe, and temperate regions of northern Africa and western Asia.   🗺 Map by county (🇺🇸 USA-48) (color key).   Invasive > 🇨🇦 🇺🇸 Canada+USA Invasive > report it! Invasive > 🇺🇸 USA Invasive > Michigan

Uses by native peoples
(Ethnobotany database)

Learn more about greater celandine poppy Chelidonium majus

🔍︎ 🔍︎ images Discover Life Encyclopedia of Life Michigan Flora Minnesota Wildflowers Missouri Botanical Garden Flora of North America NRCS PLANTS db Wikipedia