North America Native Plant

Porsild’s Draba

Botanical name: Draba porsildii var. brevicula

USDA symbol: DRPOB

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Draba nivalis Lilj. var. brevicula Rollins (DRNIB)   

Porsild’s Draba: A Rare Alpine Gem for Specialized Gardens Meet Porsild’s draba (Draba porsildii var. brevicula), a tiny but remarkable perennial that represents one of nature’s most specialized alpine treasures. This diminutive member of the mustard family might not be the showiest plant in your garden, but for those passionate ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4T1T2Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Subspecies or variety is critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ 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 ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Porsild’s Draba: A Rare Alpine Gem for Specialized Gardens

Meet Porsild’s draba (Draba porsildii var. brevicula), a tiny but remarkable perennial that represents one of nature’s most specialized alpine treasures. This diminutive member of the mustard family might not be the showiest plant in your garden, but for those passionate about rare native plants and alpine gardening, it offers something truly special.

What Makes Porsild’s Draba Special

Porsild’s draba is a native North American perennial forb, meaning it’s an herbaceous plant that returns year after year without developing woody stems. As part of the mustard family (Brassicaceae), it shares genetic ties with familiar garden plants like cabbage and radishes, though you’d hardly recognize the family resemblance in this compact alpine specialist.

This plant has quite the botanical pedigree, with the scientific synonym Draba nivalis var. brevicula Rollins appearing in older botanical literature. But regardless of what you call it, this little plant packs a lot of character into a small package.

Where You’ll Find It in the Wild

Porsild’s draba has an extremely limited native range, found only in Montana and Wyoming. This narrow distribution is part of what makes it so special—and so rare. The plant has adapted to very specific high-elevation conditions in these Rocky Mountain states.

Important Conservation Considerations

Before you get excited about adding this plant to your garden, there’s something crucial you need to know: Porsild’s draba has a Global Conservation Status of S3S4T1T2Q, indicating it’s quite rare and potentially vulnerable. This means if you’re considering growing this plant, you absolutely must source it responsibly.

Here’s what this means for gardeners:

  • Never collect plants or seeds from wild populations
  • Only purchase from reputable nurseries that propagate from ethically sourced stock
  • Consider this plant only if you have experience with challenging alpine species
  • Remember that growing rare natives is a conservation responsibility, not just a hobby

Is Porsild’s Draba Right for Your Garden?

Let’s be honest—this isn’t a plant for everyone. Porsild’s draba is best suited for serious alpine gardeners and native plant enthusiasts who have experience with challenging high-elevation species. If you’re looking for easy-care perennials or showy garden stars, you might want to explore other native options first.

However, if you’re passionate about:

  • Rock gardens and alpine plant collections
  • Rare and unusual native plants
  • Conservation gardening
  • Challenging horticultural projects

Then Porsild’s draba might be worth investigating further.

Growing Conditions and Care

Given its natural habitat in the high elevations of Montana and Wyoming, Porsild’s draba likely requires very specific growing conditions that mimic its native alpine environment. While detailed cultivation information for this specific variety is limited, alpine Draba species generally need:

  • Excellent drainage (think rocky, gravelly soils)
  • Full sun exposure
  • Cool temperatures
  • Protection from hot, humid conditions
  • Specialized alpine or rock garden settings

Due to its rarity and specialized needs, this plant is definitely not recommended for beginning gardeners or those without experience in alpine horticulture.

The Bottom Line

Porsild’s draba represents the intersection of gardening and conservation. While it’s not going to be the centerpiece of your perennial border or provide masses of color, it offers something perhaps more valuable: a connection to one of North America’s rare alpine treasures and an opportunity to participate in plant conservation.

If you’re an experienced alpine gardener with access to responsibly sourced plants and the dedication to provide specialized care, Porsild’s draba could be a meaningful addition to your collection. Just remember—with great rarity comes great responsibility.

For most gardeners interested in native plants, consider exploring more widely available native alternatives that can provide similar satisfaction without the conservation concerns. Your local native plant society or extension office can suggest abundant native species that would thrive in your specific conditions while supporting local ecosystems.

Porsild’s Draba

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Capparales

Family

Brassicaceae Burnett - Mustard family

Genus

Draba L. - draba

Species

Draba porsildii G. Mulligan - Porsild's draba

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