North America Non-native Plant

Ranunculus Natans

Botanical name: Ranunculus natans

USDA symbol: RANA2

Native status: Not native but doesn't reproduce and persist in the wild

Synonyms: Ranunculus natans C.A. Mey. var. typicus L.D. Benson (RANAT2)   

The Mysterious Ranunculus natans: An Elusive Aquatic Buttercup If you’ve stumbled upon the name Ranunculus natans in your plant research, you’ve discovered one of the more enigmatic members of the buttercup family. This aquatic species represents a fascinating gap in our readily available horticultural knowledge, making it both intriguing and ...

The Mysterious Ranunculus natans: An Elusive Aquatic Buttercup

If you’ve stumbled upon the name Ranunculus natans in your plant research, you’ve discovered one of the more enigmatic members of the buttercup family. This aquatic species represents a fascinating gap in our readily available horticultural knowledge, making it both intriguing and challenging for gardeners interested in water plants.

What We Know About This Aquatic Buttercup

Ranunculus natans belongs to the beloved buttercup family, known for their cheerful yellow flowers that seem to capture sunshine in their petals. As an aquatic species, this plant has adapted to life in or near water, setting it apart from its terrestrial cousins that dot meadows and roadsides.

The species also goes by the synonym Ranunculus natans C.A. Mey. var. typicus L.D. Benson, though this technical designation won’t help you much at your local nursery!

The Challenge of Limited Information

Here’s where things get interesting – and a bit frustrating for curious gardeners. Ranunculus natans appears to be poorly documented in standard horticultural references. This could mean several things:

  • It may be an extremely rare species with limited distribution
  • It could be a regional plant that hasn’t gained widespread cultivation attention
  • The species might be primarily of botanical interest rather than horticultural value

Geographic Distribution and Habitat

The natural range of Ranunculus natans remains unclear from available sources, though like many aquatic Ranunculus species, it likely favors cooler regions with suitable wetland habitats. Without specific distribution data, it’s difficult to recommend this plant with confidence for particular geographic areas.

Growing Conditions (What We Can Infer)

Based on its aquatic nature and relationship to other water-loving buttercups, Ranunculus natans would likely require:

  • Consistent moisture or shallow water conditions
  • Full to partial sun exposure
  • Cool to moderate temperatures
  • Clean, possibly flowing water sources

Should You Try to Grow Ranunculus natans?

Given the limited information available about this species, most gardeners would be better served by choosing well-documented aquatic plants for their water features. However, if you’re a plant collector with a passion for rare or unusual species, the mystery surrounding Ranunculus natans might be exactly what appeals to you.

Better-Documented Alternatives

If you’re looking for aquatic buttercups for your water garden, consider these better-known alternatives:

  • Ranunculus aquatilis (Common Water Crowfoot)
  • Ranunculus flammula (Lesser Spearwort)
  • Ranunculus lingua (Greater Spearwort)

These species have established growing guides, known hardiness zones, and available sources – making them much more practical choices for most water gardeners.

The Bottom Line

Ranunculus natans remains something of a botanical puzzle. While its aquatic nature and buttercup heritage suggest it could be a charming addition to the right water garden, the lack of specific growing information makes it a challenging choice for most gardeners. Sometimes the most interesting plants are also the most elusive – and this mysterious buttercup certainly fits that description!

If you do encounter this species in the wild or through specialized sources, consider yourself lucky to witness one of nature’s less-documented treasures. Just remember that successful cultivation might require some detective work and experimentation on your part.

Ranunculus Natans

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 natans C.A. Mey. [excluded]

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