North America Native Plant

Western Buttercup

Botanical name: Ranunculus occidentalis var. brevistylis

USDA symbol: RAOCB

Life cycle: perennial

Habit: forb

Native status: Native to Alaska âš˜ Native to Canada  

Western Buttercup: A Hardy Northern Native Worth Getting to Know If you’re gardening in the far north and looking for native plants that can handle tough conditions, you might want to get acquainted with the western buttercup (Ranunculus occidentalis var. brevistylis). This little-known perennial forb is a true northerner, perfectly ...

Western Buttercup: A Hardy Northern Native Worth Getting to Know

If you’re gardening in the far north and looking for native plants that can handle tough conditions, you might want to get acquainted with the western buttercup (Ranunculus occidentalis var. brevistylis). This little-known perennial forb is a true northerner, perfectly adapted to some of the most challenging growing conditions on the continent.

What Exactly Is Western Buttercup?

Western buttercup is a perennial herbaceous plant, which means it comes back year after year but doesn’t develop woody stems like shrubs or trees. As a forb, it’s essentially what most of us would simply call a wildflower – a non-woody plant that produces flowers and typically has soft, green stems.

This particular variety belongs to the buttercup family, and like its relatives, it’s built to last. The perennial label means you can count on it returning season after season once established, making it a reliable addition to northern gardens.

Where Does It Call Home?

Western buttercup is a true child of the north, native to some pretty impressive territory. You’ll find this hardy plant naturally occurring in Alaska, Alberta, British Columbia, and Yukon. If you’re gardening anywhere in these regions, you’re looking at a plant that’s perfectly suited to your local conditions – after all, it’s been thriving there long before any of us showed up with our garden spades.

Why Consider Western Buttercup for Your Garden?

There are several compelling reasons to give this native plant a spot in your landscape:

  • True native credentials: This isn’t just adapted to northern conditions – it evolved here
  • Perennial reliability: Once established, it should return year after year without replanting
  • Low maintenance potential: Native plants typically require less fussing once they’re settled in
  • Ecological value: Native plants support local wildlife and pollinators better than non-natives
  • Climate resilience: Built to handle whatever northern weather throws at it

The Reality Check: What We Don’t Know

Here’s where we need to be honest – western buttercup is one of those plants that hasn’t gotten much attention in gardening circles. Information about its specific growing requirements, mature size, flower characteristics, and care needs is quite limited. This isn’t necessarily a bad thing (plenty of wonderful plants fly under the radar), but it does mean growing this plant comes with some uncertainty.

Growing Western Buttercup: Working with Limited Information

Since specific growing information for this variety is scarce, your best bet is to mimic its natural habitat as closely as possible. Here’s what we can reasonably assume based on its native range:

  • Hardiness: This plant should handle extreme cold – it’s native to some of the coldest regions in North America
  • Soil preferences: Likely adaptable to a range of soil conditions found in its native regions
  • Maintenance: Probably low-maintenance once established, like most northern natives
  • Propagation: Methods unknown, but seed collection from wild plants (where legal and ethical) might be worth exploring

Is Western Buttercup Right for Your Garden?

This plant might be perfect for you if you’re:

  • Gardening in Alaska, northern Canada, or similar climates
  • Interested in supporting native plant diversity
  • Looking for truly hardy perennials
  • Comfortable with a bit of gardening mystery and experimentation

However, you might want to look elsewhere if you need predictable results or detailed growing information for garden planning.

The Bottom Line

Western buttercup represents an interesting opportunity for adventurous northern gardeners who want to work with truly local plants. While we don’t have all the answers about growing this particular variety, its native status and perennial nature make it worth considering for naturalistic gardens and native plant enthusiasts.

If you do decide to experiment with western buttercup, consider yourself a pioneer of sorts – you’ll be helping to expand our knowledge about growing this under-documented native plant. Just remember to source any plants or seeds responsibly and legally, respecting both private property and conservation regulations in your area.

Western 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 occidentalis Nutt. - western buttercup

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