Native Plants

Brandegee’s Fumewort

Corydalis caseana brandegeei

USDA symbol: COCAB2

perennial forb

Lower 48 states: native

Meet Brandegee’s fumewort (Corydalis caseana brandegeei), one of those wonderfully mysterious native plants that makes you feel like you’ve discovered a botanical secret. This perennial forb calls the high country of Colorado and New Mexico home, and if you’ve never heard of it before, you’re definitely not alone – it’s ...

Brandegee’s Fumewort may be listed as rare in your area.
Global Conservation Status

Status: S5T3T4 | Secure: At low or no risk of extinction in the area due to an extensive range, abundant populations, and with little to no concern of declines or threats.

Brandegee’s Fumewort: A Rare Rocky Mountain Native Worth Knowing About

Meet Brandegee’s fumewort (Corydalis caseana brandegeei), one of those wonderfully mysterious native plants that makes you feel like you’ve discovered a botanical secret. This perennial forb calls the high country of Colorado and New Mexico home, and if you’ve never heard of it before, you’re definitely not alone – it’s quite the rare find!

What Makes This Plant Special

Brandegee’s fumewort belongs to the fascinating world of Corydalis species, those delicate-looking but surprisingly tough plants that seem to appear out of nowhere in rocky crevices and mountain meadows. As a native forb (that’s garden-speak for a soft-stemmed, non-woody flowering plant), it’s perfectly adapted to life in the challenging conditions of the American Southwest’s higher elevations.

You might also see this plant listed under its synonym, Corydalis brandegeei S. Watson, in older botanical references – just another reminder of how taxonomy keeps botanists busy!

Where You’ll Find It Growing Wild

This fumewort has quite the exclusive address – it’s only found naturally in Colorado and New Mexico. We’re talking about a plant that’s chosen some pretty spectacular real estate in the Rocky Mountain region, though it keeps a decidedly low profile.

  • Species observed
  • No observations

The Reality Check: Rarity Matters

Here’s where we need to have an honest conversation. Brandegee’s fumewort carries a conservation status of S5T3T4, which indicates it may be uncommon to rare in its native range. This isn’t a plant you’re going to find at your local garden center, and honestly, that’s probably for the best.

If you’re absolutely determined to grow this particular fumewort, please – and we cannot stress this enough – only source it from reputable native plant specialists who can guarantee the material was responsibly propagated, not collected from wild populations.

Growing Conditions (What We Know)

While specific information about Brandegee’s fumewort is limited, we can make some educated guesses based on its Colorado and New Mexico origins:

  • Likely prefers well-draining, rocky or sandy soils
  • Probably adapted to cooler temperatures and higher elevations
  • May require a cold winter period for proper growth
  • Potentially drought-tolerant once established
  • Probably performs best with some protection from intense afternoon sun

Alternative Native Options

Given the rarity and limited availability of Brandegee’s fumewort, consider these more readily available native alternatives that offer similar charm:

  • Other Corydalis species native to your region
  • Native columbines (Aquilegia species)
  • Wild bergamot (Monarda species)
  • Native penstemons

The Bottom Line

Brandegee’s fumewort is undoubtedly a fascinating piece of our native plant heritage, but it’s also a reminder that some plants are better admired in their natural habitats than in our gardens. If you’re lucky enough to encounter it on a mountain hike in Colorado or New Mexico, take a moment to appreciate this rare beauty – and maybe snap a photo instead of taking home a cutting.

For most gardeners, focusing on more common (but equally wonderful) native plants will give you better success and help support conservation efforts for rare species like this fumewort. After all, the best way to protect rare plants is sometimes simply to let them be rare.

Corydalis caseana brandegeei 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. Corydalis caseana brandegeei is also known as:

Corydalis brandegeei | USDA symbol: COBR4

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: Papaverales
Family: Fumariaceae Marquis - Fumitory family
Genus: Corydalis DC. - fumewort

Species: Corydalis caseana A. Gray - Sierra fumewort

Subspecies: Corydalis caseana A. Gray ssp. brandegeei (S. Watson) G.B. Ownbey - Brandegee's fumewort

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