Spring is definitely early this year, and one "wildflower" is really taking off right now. Lesser celandine is a plant that's blooming yellow flowers in many neighborhoods, and you may be tempted to transplant some to your own home. Please don't be fooled!
Lesser celandine is an invasive plant. If you've seen it around, you may know this plant spreads quickly and forms dense mats that keep out other plants. That is what makes it a risk for Portland's natural areas, stream banks and parks, not to mention the rest of your landscaping.
Lesser celandine covers a large area at St. Francis Park in SE Portland.