North America Native Plant

Popular Buttercup

Botanical name: Ranunculus populago

USDA symbol: RAPO

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Popular Buttercup: A Lesser-Known Native Wetland Beauty If you’re looking to add native wildflowers to your garden, you might have stumbled across the popular buttercup (Ranunculus populago). This perennial forb represents one of the more mysterious members of the buttercup family, and while information about it can be scarce, what ...

Popular Buttercup: A Lesser-Known Native Wetland Beauty

If you’re looking to add native wildflowers to your garden, you might have stumbled across the popular buttercup (Ranunculus populago). This perennial forb represents one of the more mysterious members of the buttercup family, and while information about it can be scarce, what we do know makes it an intriguing option for the right garden setting.

What is Popular Buttercup?

Popular buttercup is a native perennial forb that belongs to the Ranunculus genus, known for their cheerful yellow flowers. As a forb, this plant lacks significant woody tissue and maintains its perennating buds at or below ground level, allowing it to return year after year in suitable conditions.

Where Does It Grow Naturally?

This native beauty calls the western United States home, naturally occurring across five states: California, Idaho, Montana, Oregon, and Washington. Its range spans diverse western landscapes, from coastal areas to mountain valleys.

The Wetland Connection

Here’s where popular buttercup gets really interesting – it has a strong preference for wet conditions. Depending on your region, this plant shows different wetland tendencies:

  • Arid West region: Classified as Obligate Wetland, meaning it almost always occurs in wetlands
  • Western Mountains, Valleys, and Coast region: Listed as Facultative Wetland, usually found in wetlands but occasionally in drier sites

Should You Plant Popular Buttercup?

The decision to plant popular buttercup comes with some important considerations. As a native species, it certainly has ecological value and won’t pose invasive threats to local ecosystems. However, the limited available information about this particular species suggests it may be quite specialized in its requirements or possibly rare in cultivation.

Garden Applications and Growing Conditions

Given its wetland status, popular buttercup would be most suitable for:

  • Rain gardens
  • Pond or stream edges
  • Bog gardens
  • Native wetland restoration projects
  • Areas with consistently moist soil

If you’re gardening in California, Idaho, Montana, Oregon, or Washington, this native could potentially thrive in consistently wet areas of your landscape. However, due to the limited cultivation information available, you might want to start small and observe how it performs in your specific conditions.

The Mystery Factor

Here’s the thing about popular buttercup – it’s something of an enigma in the gardening world. While many Ranunculus species are well-documented garden performers, specific growing instructions, propagation methods, and detailed care requirements for R. populago are harder to come by. This could mean it’s either very specialized in its needs or simply hasn’t gained popularity in commercial horticulture.

Alternative Native Buttercups

If you’re drawn to the idea of native buttercups but want more reliable growing information, consider these well-documented western natives:

  • Western buttercup (Ranunculus occidentalis)
  • Creeping buttercup varieties that are native to your area
  • Other native Ranunculus species with established cultivation practices

The Bottom Line

Popular buttercup represents an intriguing piece of native flora that could add authentic regional character to wetland gardens. While the limited available information means you’d be somewhat pioneering in growing it, gardeners who enjoy experimenting with lesser-known natives might find it a rewarding challenge. Just ensure you can provide the consistently moist conditions it requires, and consider starting with more established native alternatives if you’re new to native gardening.

As always, if you do locate this species, source it responsibly from reputable native plant nurseries that propagate rather than wild-collect their stock.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Arid West

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Western Mountains, Valleys, and Coast

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Popular Buttercup

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Magnoliidae

Order

Ranunculales

Family

Ranunculaceae Juss. - Buttercup family

Genus

Ranunculus L. - buttercup

Species

Ranunculus populago Greene - popular buttercup

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA