I'm fairly certain I've had a large tribe of these flowers growing and seeding near my gardens for the past two years; the leaves look the same and the seed pods as well, though my flowers appear to be a double instead of the simple 4-petal. I've been trying to uncover what particular variety this is but can't seem to find it. They're LOVELY, compact plants (if short-lived) with very happy flowers; they do seed readily, but I've found them easy to remove, with a root structure that pulls up easily if you grab the whole plant by the base. I'm leaving them where I can, as they are beautiful to look at both for the flowers and also for the foliage and shape.

Norah, my concern is that you are confident you can keep these plants all confined to your own yard. You cannot. Seed will be transported by wind, water and wildlife and all your good intentions and wishful thinking cannot stop that. That seed will propagate in unwanted places, and spread to further unwanted places. :( Please reconsider your gardening decisions.

These have been popping up in my yard for a couple years now and spreading. I've been pulling them before they go to seed.

A friend of mine had given me a bunch of heirloom flowers from her mothers 80 year old garden in New Prauge MN, I believe among them might have been this flower. Not knowing what it was but enjoying the small yellow flowers I transplanted it to a different spot as it was crowding out some hostas next to a Celadine poppy. Unfortunately, I don't remember if it had any seed pods, but it did have small yellow flowers and still sports a healthy set of green leaves that closely resemble the ones pictured above. Now that I know what it is I will be pulling it out.

Alika, note that there is a celandine native farther south and east, too: Stylophorum diphyllum. It shouldn't be invasive but you might want to check you don't have that one before you yank it out.

Tons of it. Not sure how it got here but I've been pulling it out for eight years at least.

I've been trying to identify this for several years. I can believe it's invasive, because it's spreading. I have a very challenging lot, with lots of other invasives. Sigh. I guess I'll add this to the list.

Hi, Anyone who claims to have this plant, please send me some roots. I've been looking for this amazing anti-viral, anticancerogenic plant. The yellow sap used in Europe for ages for warts. I gotta have it in my greenhouse.

Nataly, you can probably purchase this from any number of online vendors - some sell anything and everything. Please keep it in your greenhouse so it doesn't invade natural areas.

This was present prior to the narrow-leaf bittercress removal a few years back. There were a few remaining plants in 2012, so I'm guessing it is still there.

If you find this plant in Ramsey County MN please report its location to the Ramsey County Cooperative Weed Management Area: carole.gernes@rwmwd.org. Thank you!

Nataly, this plant is a common garden weed around Delavan, MN. It has really taken over shady areas of the farm I gre up on. Pretty and perhaps useful, it's a terrific spreader by seed! So beware!

Yesterday(May 20, 2015) I found a dozen or more plants growing in the woods near the Castle Rock in southern Dakota County(not a county of record according to your map). The plants I saw up close had double flowers. I was familiar with the plant from my time at the Morton Arboretum in Illinois. Showed the friend I was with the orange sap.

I found half dozen of these clustered in my friend's back yard (W 7th area) within his small corner 'forest'. I couldn't find in the wildflower books I have so this is great to finally ID. He had a bunch nasty sticky prickly bushes last fall that we yanked (tiny burrs on stems that caught on everything) and I was afraid these were the same thing, just earlier in the season. They are sweet and eye-catching but will pull out so as not to spread. Thanks!

This plant is invading floodplain forest along Spring Creek in the Carleton College Arboretum. I believe it is washing downstream during flood events from upstream properties. We search for and remove it every year before it goes to seed but I am sure that it will be a years long effort, especially until we find the upstream source.

We have seen massive colonies of celandine in the river terraces above the Minnesota River in Nicollet County. I first spotted it some years ago on Dunn Island at Coon Rapids Dam in Anoka County. It seems to definitely be traveling along waterways.

An unfortunate story. Five years ago I bought seed for Celandine Poppy, Stylophorum diphyllum. Which is what I thought I was growing all along. But it spread wildly in my yard. I didn't know that the seller sent me Chelidonium, I guess thinking it was the same thing. Only this last fall did I finally come to understand what I have and it will be along running battle to eradicate it. Be very careful about this plant.

Yikes! I just pulled up 6 plants growing In my yard. I will continue to be vigilant and pull any more that I find.

I posted last year (see above) about finding these in neighbor's backyard and thought I'd removed them but No - there were even MORE this year by the time they flowered and I noticed them (just this week). And now realize why: someone previously had added that ineffective black fabric last time they cleared the underbrush and now you can't get all the striding roots, just whatever you can pull from the small rent in the fabric the plant makes. They filled a good third of (menards) paper bag this year. Last year I may have cut up and put into my own compost (which I've yet to use) but this year I'd rather dispose of in trash - if that's okay? I'm close to a Ramsey county compost site but not sure if compost gets hot enough to destroy. Please advise - thanks! :)

Judy, contact your county's weed program for advice and assistance. Do not dump these plants in the county compost site or you may just spread it to new areas. In Ramsey County, your best bet is the Cooperative Weed Management Area. Celandine is on their hit list so you should get some help.

Ugh--I just saw 6 plants of Celandine on the lake side of the unpaved section of the trail. Lovely trail around the lake, though sections are becoming infested with burdock, Japanese hedge parsley, Dames rocket, and garlic mustard. Would Eagan's Park's & Rec folks will consider any action? In past conversations on invasives I haven't seen much inclination (we don't have the time, etc.)

I purchased a home last fall and have these growing all over my garden this spring. After I pull them, how should I dispose of the plants?

I've found the native look-alike Wood Poppy Stylophorum diphyllum thriving in a woodland garden setting near Afton, Mn. (We actually dug some transplants for a master gardener plant sale). Perhaps you should include some info more info on the distinction so folks dont inadvertently destroy this beautiful native? Heres a very good guide for doing that: https://wizzley.com/wood-poppy-identification/

I definitely these in my yard. I will be removing them as soon as I can.

Drat! These are in bloom right now at the river dog park located between Minnehaha Falls and Fort Snelling. I was really hoping they were natives but after consulting wizzley.com I'm certain it's the invasive species.

I have been trying to identify these for about six years. They are prolific in my wooded lot; herbicides tend to roll off. Best thing is to pull them out. Any other ideas? How many years can the seeds germinate? Each plant produces many!

Susan, just do whatever you have to to prevent any more seed production!

My mom had brought some of these over to my new home, and they are quite aggressive. I started to pull some of them out this spring, and will have to make a greater effort to get at them all this weekend. They are quite prolific in my mother's yard in Circle Pines, though the lot is sandy and they stay about half the height compared to the ones in my Richfield yard.

The information about the prohibited status in Wisconsin is not very precise and subject to an incorrect conclusion. This plant is a prohibited species in most northern counties of Wisconsin and a restricted species in the southern two thirds of the state. See the Wisconsin DNR guide at https://dnr.wi.gov/files/pdf/pubs/fr/fr0436a.pdf John

I have been digging/pulling these rosettes, thinking they might be Japanese Hedge Parsley - but they are not! They must be Celandine ((Chelidonium majus) by the shape of the leaves. I can't remember if they bloomed last year - I am still learning. They are all over, just like foot-steps, on a south-facing hillside that we are restoring from buckthorn, burdock, etc., to oak savanna. A dandelion digger is most helpful, circling the plant. I pulled about a Cub food box half-full so far, nearly done. When the burning ban is lifted, I hope to burn enough brush to burn these too.

This plant showed up in the shady east side of our yard last year. It's spreading like wildfire, and I think attractive. I've been looking online all day, and finally found it here. I have photos, but don't see how to attach them.

Karen, that "spreading like wildfire" bit should concern you.

the past couple of years I have been helping to remove this plant from the Carleton Arboretum, on the east side of Northfield. I was then surprised to see it in my own neighborhood, on the west side of town, near St. Olaf. Now I see it is moving up the block, from house to house. Yes, this is a pretty plant, but it is a real spreader. Don't tolerate it in your yard.

I have 14 plants in my yard that will be in the dumpster next week. Cute little plant. Too bad it is invasive. I think mine came in with a load of wood chip mulch.

We moved here last September and the previous owner said he had brought this plant from Russia 20 years ago. He said that you can boil it and make a tea that soothes upset stomachs. After moving in I couldn't believe all of these plants found in the garden. I decided they were invasive and started removing them. Just today I found exactly what they are through this site.

Found a big patch, adjacent to about an acre of garlic mustard, in the woods near Fox Trails Park on city property.

There is a significant amount of Celandine all throughout Resevoir Woods Park. I saw many hundreds of plants along the trail and and in the forested areas.

I've noticed the most invasive species in Minneosta is the human being. Who are we to say which plants belong where? The petrified swamps with alligators that have been uncovered in North Dakota should tell us something about the power of nature and man's puny efforts to control it. Good luck with that! Keep fighting til the end. Ps Which is the poisonous variety of this plant? Is it the native Minnesota or the invasive? I eat weeds. Thank you for this informative website.

Nanette, it is not too difficult to determine which species were introduced to this part of North America by unnatural means (i.e. human transport), particularly since the time of European settlement. BTW, there is no celandine species native to Minnesota; the similar Stylophorum diphyllum is native to other parts of the US and I don't know if either is poisonous.

This looks like what I have been seeing blooming all over Reservoir Woods in Ramsey County off of Larpenteur especially under the pine trees. I'll take a picture and double check its not a look-alike, and report it to Ramsey County Cooperative Weed Management Area unless I hear its already known about.

Kathy, I'd report it regardless.

I was wondering since you shouldn't put these and other invasive species in compost piles, if after pulling them out, would tossing them onto sunny pavement kill it? Then toss it into our heap?

Susan, a backyard compost pile isn't likely to generate high enough heat to kill a lot of weed seeds, but the county yard waste site should.

Found several plants of this in my backyard adjacent to Coon Creek. Might have been in a wildflower seed packet I naively planted in the area a few year back. Will try to eradicate.

June 2, 2022. I took a photo so I could identify it, but it wasn't easy to find! Very pretty, so I'm sorry to find it's invasive.

Found this along the edge of the woods near the Goodhue County History Museum, overlooking the city of Red Wing. I had never seen it before so I took a picture of it and researched it at home but it wasn't in my books so I looked online. It looks pretty along the woods so it's sad to learn it is invasive. Our backyard along the bluffs is overrun with Garlic Mustard (white flower & invasive) plants and that never used to be around our area either.

Got some pictures of it while on a bike ride, along Rice Creek trail from Chomonix golf area toward former YMCA, now ? Rookery athletic Bldg. ..Solitary cluster of yellow flowers not far from Rice Creek bridge, identified with aid of Google and Minnesota Wild Flower site.

This appeared in my yard a couple years ago and was popping up in several places, before I was able to identify it, thanks to this website. I immediately removed the ones I could see, and luckily, catching it within the first couple years, I have not had many more appearing. However, a friend just gave me some, liking the flowers, so I know it is still spreading in our community. I destroyed the one from her too.

I was given this plant several years ago in a plant exchange. Everything grows great in my sandy loam soil, and this was wildly invasive. Then I saw it growing in southern MN along the Root River bike trail! Help! Have been pulling it out for years. I'll keep on. Sara

Please list this plant on your invasive lists. It's a really thuggish beauty. Trying to take over my yard, and I've seen it invading the woods, too.

We are having trouble with celandine on our sr. co-op grounds near the Mississippi.

Being a state trail is it ok to pull invasive plants if you put them in a plastic bag and dispose of them in the trash?

B. Clarey, technically taking plants from state lands without permission is not allowed, but I don't think anyone would complain if you did in this case. Also, technically plants should not go in the trash, but if you label the bag "invasive species" it might be OK. If your city or county has a compost site you might take it there. Backyard composting probably won't heat it enough to kill any seed but the commercial compost sites should.

I have found this on the sides of the Glacials Lakes bike trial north of the twin cities-25 miles west of St. Cloud. I have pulled them out with gloves and discarded the plants.