Land Plants - invasive

Lesser Celandine (Ranunculus ficaria) on Feb 2, 2011

Submitter has sample
EDRR Status: Local expert notified

Description of specimen

Flowering now, bright yellow flowers 8-10 petals born singly on stalks, shiny heart-shaped leaves.


I will dig up the ones in my yard and bring my neighbor a fact sheet on the weed. They have a ton and may need help removing them if resources are available.

Feb. 2, 2011, 2:09 p.m.

Hi Elise,

Thanks so much for reporting Lesser Celandine. Thank you for being willing to control the species on your property and share some information with your neighbors. Currently I don't know of any resources (beyond information, advice, ect.) to help folks with control on their own property. However, if you think they will need help perhaps we could try to round up some volunteers who could help dig it out initially? The key to getting rid of this species will be follow up since it is so hard to find and remove all of the many bulblets. Also it is really important that any pulled material is not thrown in the compost. It needs to be put in the trash. Let me know how it goes when you contact them.

This is the time of year it is very visible, and thus a great time to increase awareness about this species. We should consider promoting it as the weed of the month again. Here is a link to an alert we posted last year for more information.

Thanks and keep on reporting!!!


Tania Siemens
Invasive Species Early Detection and Rapid Response Coordinator
The Nature Conservancy
WISE Program Coordinator (Watershed and Invasive Species Education)
Oregon Sea Grant Extension

Tania Siemens
Feb. 2, 2011, 5:10 p.m.