Report #2301 - Report: Lesser Celandine (Ranunculus ficaria)

Lesser Celandine (Ranunculus ficaria) on Mar 20, 2018

Submitter has sample
EDRR Status: Local expert notified

Description of specimen

Several large patches (10ft diameter) at waters edge. In flower now.

Commentary

Dear Margaret,

Thank you for reporting lesser celandine. This menace displaces more desirable plants in lawns, gardens, parks, and natural areas. Mowing and tilling control more well-behaved weeds, but only causes lesser celandine to spread further. Entire lawns, parks, and even neighborhoods have been taken over!

We really appreciate your report. I will forward it to natural area managers at the city of Eugene. Your report adds to a valuable database of invasive species spread that helps scientist study it spread and impact, and helps land managers make informed decisions. Thank you! Keep the reports coming!

Sincerely,
Tania

Tania Siemens
Watershed and Invasive Species Education (WISE) Program
Oregon Sea Grant
Oregon State University
cell: 541-914-0701 email: tania.siemens@oregonstate.edu
http://seagrant.oregonstate.edu/education/dont-pack-pest-student-travelers
http://blogs.oregonstate.edu/wise/

Tania Siemens
March 20, 2018, 11:56 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

Lesser Celandine (Ranunculus ficaria) on Mar 20, 2018

Description of specimen

Commentary

Remedy

Resources

Location

Expert Reviewer