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North America Native Plant

Chamisso Arnica

Chamisso Arnica: A Rare California Mountain Treasure Worth Knowing Meet Chamisso arnica (Arnica chamissonis foliosa var. bernardina), a charming perennial wildflower that’s as elusive as it is beautiful. This particular variety of arnica is a true California native, representing one of nature’s more specialized creations that calls the Golden State’s ...

Rare plant alert!

This plant is listed as rare and may be protected in certain regions. Its populations are limited, and removal from the wild could further endanger its survival. If you wish to enjoy this plant, consider sourcing from reputable nurseries that propagate responsibly or explore alternatives to help preserve natural populations.

Region: Conservation status by state

Status: S5T2T3: 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) ⚘ Subspecies or variety is 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. ⚘ 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. ⚘

Chamisso Arnica: A Rare California Mountain Treasure Worth Knowing

Meet Chamisso arnica (Arnica chamissonis foliosa var. bernardina), a charming perennial wildflower that’s as elusive as it is beautiful. This particular variety of arnica is a true California native, representing one of nature’s more specialized creations that calls the Golden State’s mountains home.

What Makes This Plant Special

Chamisso arnica belongs to the sunflower family and grows as a herbaceous perennial forb—basically a non-woody flowering plant that returns year after year. Like other members of the arnica family, it likely produces cheerful yellow, daisy-like blooms that brighten mountain meadows and forest clearings.

Also known by its botanical synonym Arnica bernardina Greene, this plant represents a unique variety that has adapted to specific California mountain conditions over thousands of years.

Where You’ll Find It Growing Wild

This special arnica variety is endemic to California, meaning it grows nowhere else on Earth. Its native range appears to be concentrated in the state’s mountain regions, particularly areas associated with the San Bernardino Mountains.

A Word of Caution: Rarity Matters

Here’s where things get important for gardeners: Chamisso arnica has a Global Conservation Status of S5T2T3, which indicates this variety may be uncommon to rare in its native habitat. This means if you’re interested in growing this beautiful native, you’ll want to be extra thoughtful about sourcing.

We absolutely encourage planting native California species, but only when you can ensure your plants come from responsible, ethical sources—never from wild collection. Look for nurseries that specialize in California natives and can verify their seed sources.

Growing Challenges and Considerations

Let’s be honest: detailed cultivation information for this specific variety is pretty scarce. That’s not unusual for specialized mountain plants that have evolved in very particular conditions. Mountain arnicas typically prefer:

  • Cool, moist conditions similar to their native mountain habitats
  • Well-draining soil that doesn’t stay soggy
  • Some protection from intense afternoon sun
  • Adequate winter chill hours

Is This Plant Right for Your Garden?

Chamisso arnica might be perfect for you if:

  • You’re creating a California native plant garden
  • You live in or can recreate mountain-like growing conditions
  • You’re passionate about rare plant conservation
  • You want to support local pollinators with native blooms
  • You can source plants responsibly from reputable native plant nurseries

However, this might not be the best choice if you’re looking for a low-maintenance garden staple or live in hot, dry conditions that are very different from California’s mountain environments.

The Bigger Picture

Whether or not you end up growing Chamisso arnica in your garden, this little plant represents something much bigger: the incredible diversity of California’s native flora and the importance of protecting these unique varieties for future generations.

If growing this specific variety proves challenging, consider supporting California’s native plant diversity by choosing other native arnicas or mountain wildflowers that might be better suited to cultivation while still providing similar ecological benefits.

Remember, every native plant we grow—whether common or rare—helps create habitat corridors and supports the web of life that makes California’s ecosystems so special.

Chamisso Arnica

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Arnica L. - arnica

Species

Arnica chamissonis Less. - Chamisso arnica

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