Native Plants

Fall Buttercup

Ranunculus aestivalis

USDA symbol: RAAE

perennial forb

Lower 48 states: native

If you’re a native plant enthusiast in Utah, you might have heard whispers about the elusive fall buttercup (Ranunculus aestivalis). This little-known wildflower is one of Utah’s most precious botanical gems – and one of its rarest. Before we dive into what makes this plant special, there’s something crucial you ...

Fall Buttercup may be listed as rare in your area.
Global Conservation Status

Status: S1 | Critically imperiled: Typically 5 or fewer occurrences or under 1,000 remaining individuals.

United States

Status: Endangered | Endangered. In danger of extinction throughout all or a significant portion of its range.

Fall Buttercup: Utah’s Rare Native Treasure Worth Protecting

If you’re a native plant enthusiast in Utah, you might have heard whispers about the elusive fall buttercup (Ranunculus aestivalis). This little-known wildflower is one of Utah’s most precious botanical gems – and one of its rarest. Before we dive into what makes this plant special, there’s something crucial you need to know about its conservation status.

A Plant on the Edge: Understanding Rarity

Fall buttercup isn’t just uncommon – it’s critically imperiled. With a Global Conservation Status of S1, this species is hanging on by a thread, with typically five or fewer known populations and fewer than 1,000 individual plants remaining in the wild. It’s officially listed as Endangered, making it one of Utah’s most vulnerable native plants.

Important note for gardeners: If you’re considering adding fall buttercup to your garden, please only use responsibly sourced material from reputable native plant societies or conservation programs. Never collect from wild populations – every plant in nature counts for this species’ survival.

Meet the Fall Buttercup

Ranunculus aestivalis goes by the common name fall buttercup, though you might also see it referenced by its botanical synonyms in older literature. As a member of the buttercup family, it shares the characteristic bright yellow flowers that make these plants so recognizable and beloved.

This perennial forb (a fancy way of saying it’s a non-woody flowering plant that comes back year after year) has a growth habit typical of its family. Like other forbs, it lacks significant woody tissue and keeps its growing points at or below ground level, helping it survive harsh conditions.

Where in the World: Geographic Range

Here’s what makes fall buttercup truly special – it’s found nowhere else in the world except Utah. This endemic species calls the Beehive State its one and only home, making it a true Utah native treasure.

  • Species observed
  • No observations

A Wetland Wonder

Fall buttercup has a particular fondness for wet places. Classified as Facultative Wetland in both the Arid West and Western Mountains regions, this plant usually calls wetlands home but can occasionally venture into drier areas. Think of it as a moisture-loving species that’s most comfortable with its feet wet.

Garden Potential and Landscape Role

For the lucky few who can obtain responsibly sourced fall buttercup, this plant offers unique opportunities:

  • Conservation gardens: Perfect for gardeners passionate about preserving Utah’s native flora
  • Wetland gardens: Ideal for bog gardens, rain gardens, or areas with consistent moisture
  • Native plant collections: A crown jewel for serious Utah native plant enthusiasts
  • Educational landscapes: Great conversation starter about plant conservation

Growing Conditions and Care

Based on its wetland status and Utah origins, fall buttercup likely thrives in:

  • Moisture: Consistent water supply – think bog-like conditions
  • Climate: Cool, mountain conditions typical of Utah’s higher elevations
  • Soil: Probably prefers rich, organic soils that stay moist
  • Hardiness: Likely adapted to Utah’s mountain climate zones

Supporting Pollinators

Like other buttercups, fall buttercup likely provides nectar and pollen for native bees and other small pollinators. Every buttercup flower is like a tiny landing pad offering a sweet reward to visiting insects.

The Bottom Line

Fall buttercup represents both an incredible opportunity and a significant responsibility. For Utah gardeners passionate about native plants and conservation, growing this species (with properly sourced material) can contribute to its preservation while creating a unique, meaningful garden feature.

However, this isn’t a plant for casual gardening. Its rarity demands respect, proper sourcing, and potentially specialized growing conditions. If you’re interested in growing fall buttercup, connect with Utah native plant societies, conservation organizations, or botanical gardens to learn about legitimate sources and proper care techniques.

Sometimes the most rewarding plants to grow are the ones that connect us to the fragile beauty of our local ecosystems – and fall buttercup is exactly that kind of special plant.

Ranunculus aestivalis is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Ranunculus aestivalis is also known as:

Ranunculus acriformis Gray var. aestivalis | USDA symbol: RAACA
Ranunculus acris var. aestivalis | USDA symbol: RAACA4

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Magnoliidae
Order: Ranunculales
Family: Ranunculaceae Juss. - Buttercup family
Genus: Ranunculus L. - buttercup

Species: Ranunculus aestivalis (L.D. Benson) Van Buren & Harper - fall buttercup

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