North America Native Plant

Frogbit Buttercup

Botanical name: Ranunculus hydrocharoides var. stolonifer

USDA symbol: RAHYS

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Ranunculus stolonifer Hemsl. (RAST3)   

Frogbit Buttercup: A Rare Southwestern Native Worth Knowing Meet the frogbit buttercup (Ranunculus hydrocharoides var. stolonifer), a little-known native wildflower that calls the American Southwest home. While this perennial beauty might not be a household name among gardeners, its unique characteristics and native status make it worth understanding—especially if you’re ...

Rare plant alert!

Region: Conservation status by state

Status: S3S5T2T4: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Frogbit Buttercup: A Rare Southwestern Native Worth Knowing

Meet the frogbit buttercup (Ranunculus hydrocharoides var. stolonifer), a little-known native wildflower that calls the American Southwest home. While this perennial beauty might not be a household name among gardeners, its unique characteristics and native status make it worth understanding—especially if you’re passionate about preserving regional flora.

What Makes Frogbit Buttercup Special?

The frogbit buttercup belongs to the vast buttercup family, but this particular variety has carved out its own niche in nature. As a perennial forb, it’s an herbaceous plant that comes back year after year, lacking the woody stems of shrubs or trees but maintaining a persistent root system that helps it survive challenging conditions.

You might also see this plant referenced by its synonym, Ranunculus stolonifer, in older botanical texts or specialized plant databases.

Where Does It Call Home?

This buttercup variety has a surprisingly limited native range, naturally occurring in just two states: Arizona and New Mexico. This restricted distribution immediately tells us we’re dealing with a plant that has very specific habitat requirements and isn’t adaptable to just any garden setting.

The Rarity Factor: Handle with Care

Here’s where things get interesting—and important. The frogbit buttercup has a conservation status that suggests it’s uncommon to rare in its native range. This means if you’re lucky enough to encounter this plant or find seeds or plants for sale, you’ll want to ensure they come from responsible, ethical sources that don’t impact wild populations.

Important note: Never collect plants or seeds from the wild, especially rare species like this one. Always work with reputable native plant societies or specialized nurseries that propagate plants responsibly.

Growing Frogbit Buttercup: The Honest Truth

We’ll be upfront with you—detailed cultivation information for this specific variety is quite limited. This isn’t uncommon with rare native plants that haven’t entered mainstream horticulture. However, we can make some educated assumptions based on its classification and native habitat:

  • As a Southwest native, it likely prefers well-draining soils
  • Being a buttercup family member, it may appreciate some moisture during its growing season
  • Its limited range suggests it has specific climate and soil requirements
  • As a perennial forb, it will die back seasonally and return from its root system

Is This Plant Right for Your Garden?

The frogbit buttercup presents an interesting case for native plant enthusiasts. While we always champion growing native species, this particular plant comes with some considerations:

You might consider it if:

  • You live in Arizona or New Mexico and want to support local biodiversity
  • You’re working on habitat restoration in its native range
  • You’re a collector of rare native species and can source it ethically
  • You have specialized knowledge of Southwest native plant cultivation

You might look elsewhere if:

  • You live outside its native range
  • You’re looking for a low-maintenance, well-documented garden plant
  • You want guaranteed results with detailed care instructions

Alternative Buttercups to Consider

If the frogbit buttercup seems too challenging or rare for your garden goals, consider other native buttercup species that might be more readily available and better documented for your region. Your local native plant society can help you identify buttercup species native to your specific area that might offer similar aesthetic appeal with better cultivation guidance.

The Bottom Line

The frogbit buttercup represents the fascinating world of specialized native plants that exist in nature’s quieter corners. While it may not become a garden center staple anytime soon, understanding and appreciating plants like this helps us better protect the incredible diversity of our native flora.

If you’re interested in growing this rare beauty, connect with native plant experts in Arizona and New Mexico, join specialized plant societies, and always prioritize conservation over collection. Sometimes the most meaningful way to appreciate a rare plant is simply knowing it exists and supporting efforts to protect its wild habitat.

Frogbit 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 hydrocharoides A. Gray - frogbit buttercup

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