Land Plants - invasive

Lesser Celandine (Ficaria verna) on Mar 27, 2025

Submitter has sample

Description of specimen

This invasive weed has migrated from our neighbor's property and is moving into our yard. They have a huge infestation of it.

Commentary

Thanks for the report Wendy! Lesser celandine is a difficult plant to control. Here is some more information on this plant.

https://tualatinswcd.org/species/lesser-celandine/

and here's our Best Management Practices document:

https://tualatinswcd.org/lesser-celandine_bmp/

You can use these to inform your neighbor of the need for their control.

If you have further questions, feel free to reach out to me below.

Thanks,
Keith Nasman
Invasive Species Technician
Tualatin Soil & Water Conservation District
503-334-2288
keith.nasman@tualatinswcd.org

Keith Nasman
April 3, 2025, 6:29 a.m.

Remedy

For small patches, plants can be dug up in their entirety (be sure to get all roots and the small bulbils that break off to form new plants - you may need to sift through your soil to get these). Do not compost or put in your yard debris bin any below-ground parts of the plant (tubers and bulbils) as they can be spread this way. The leaves and flowers are ok to compost or put in yard debris. For larger patches, digging is impractical and can cause a lot of disturbance; herbicide application may have more success. * Lesser Celandine: National Park Service fact sheet *Lesser Celandine info from West Multnomah SWCD

Resources

Lesser Celandine info from Urban Ecology Center

Location

In the culvert near the fire hydrant. Our neighbor has a huge amount of these lesser celandine in their front and back yard. We also see many of these plants all over the neighborhood on SW 91st and SW Cashmur, including Raleigh Park.

Expert Reviewer

Keith Nasman
Tualatin SWCD

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