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Lesser celandine: pretty but toxic and invasive

Lesser celandine forms bright yellow mats that crowd out native plants and can poison animals that eat it.

Published Apr 4, 2026, 7:00 AM EDT | LehighValleyLive

Because some rain and very warm temperatures recently hit our area, the outside world is once again becoming alive. Many different wildflowers, both natives and non-natives, are blooming — although most of them are small and go unnoticed or ignored by people.