Land Plants - invasive

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.


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!


Tania Siemens
Watershed and Invasive Species Education (WISE) Program
Oregon Sea Grant
Oregon State University
cell: 541-914-0701 email:

Tania Siemens
March 20, 2018, 6:56 p.m.