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collage of Greater Celandine and Celandine Poppy

Greater Celandine (Chelidonium majus) vs. Celandine Poppy (Stylophorum diphyllum)

Updated May 24th, 2021

These two plants, one native to North America and the other introduced and invasive in many regions, have superficially similar leaves and flowers. With effort, they can be told apart by leaves and flowers. They are easiest to distinguish by their seed pods or the arrangement of leaves along stems. Although their habitats overlap and both can occur together in the same habitat, Chelidonium is shorter-lived and more likely in sunnier, disturbed habitats whereas Stylophorum is longer-lived and more likely in shadier habitats, especially intact wild areas.

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