North America Native Plant

Krause’s Sorrel

Botanical name: Rumex krausei

USDA symbol: RUKR

Life cycle: perennial

Habit: forb

Native status: Native to Alaska  

Krause’s Sorrel: A Rare Alaskan Native Worth Protecting If you’ve stumbled across information about Krause’s sorrel (Rumex krausei), you’ve discovered one of Alaska’s botanical treasures – and one that needs our protection more than our gardens need another plant. This little-known member of the buckwheat family is a perfect example ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: 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) ⚘

Krause’s Sorrel: A Rare Alaskan Native Worth Protecting

If you’ve stumbled across information about Krause’s sorrel (Rumex krausei), you’ve discovered one of Alaska’s botanical treasures – and one that needs our protection more than our gardens need another plant. This little-known member of the buckwheat family is a perfect example of why not every native plant should find its way into our landscaping plans.

What Makes Krause’s Sorrel Special

Krause’s sorrel is a perennial forb, which is a fancy way of saying it’s a soft-stemmed, non-woody plant that comes back year after year. Like other members of the Rumex genus, it’s related to common garden sorrel and dock plants, but this particular species has chosen to make Alaska its exclusive home.

The plant grows as a herbaceous perennial, meaning it dies back to the ground each winter and resurges from its root system when conditions improve. Its flowers are small and greenish – not exactly the showstoppers you’d choose for a flower border, but perfectly suited to their wild Alaskan habitat.

Where You’ll Find It (If You’re Lucky)

Krause’s sorrel is endemic to Alaska, meaning it grows naturally nowhere else on Earth. Within Alaska, it has an extremely limited distribution, making it a true botanical rarity.

The Conservation Reality Check

Here’s where things get serious: Krause’s sorrel carries a Global Conservation Status of S2, which translates to Imperiled. This means the species faces a real risk of extinction, with typically only 6 to 20 known occurrences and perhaps just 1,000 to 3,000 individual plants remaining in the wild.

This rarity status puts Krause’s sorrel in a special category – it’s a plant we should celebrate and protect rather than cultivate. Every wild population is precious, and removing plants or seeds from their natural habitat could potentially harm the species’ survival.

Why This Isn’t Your Next Garden Addition

While the idea of growing a rare Alaskan native might sound appealing, there are several compelling reasons to admire Krause’s sorrel from afar:

  • Conservation ethics: With so few populations remaining, wild collection could harm the species
  • Specialized needs: This plant has evolved for specific Alaskan conditions that are difficult to replicate elsewhere
  • Limited availability: Responsibly sourced seeds or plants are essentially non-existent in the nursery trade
  • Climate requirements: It’s adapted to Alaska’s unique growing conditions (likely USDA zones 1-4)

Better Alternatives for Your Native Garden

If you’re drawn to the idea of growing native sorrel species, consider these more common and garden-appropriate alternatives:

  • Common sorrel (Rumex acetosa) if it’s native to your region
  • Sheep sorrel (Rumex acetosella) where naturally occurring
  • Regional native plants from the buckwheat family that are locally abundant

How You Can Help

The best way to support Krause’s sorrel is through conservation awareness and habitat protection. If you’re passionate about rare plants, consider:

  • Supporting organizations that work to protect Alaska’s unique flora
  • Choosing abundant native plants for your garden instead
  • Spreading awareness about plant conservation
  • Respecting wild populations if you’re ever lucky enough to encounter them

The Bigger Picture

Krause’s sorrel serves as a reminder that native gardening isn’t just about putting any native plant in the ground – it’s about making thoughtful choices that support both biodiversity and conservation. Sometimes the best thing we can do for a rare plant is simply let it be.

By focusing our garden efforts on locally abundant native species, we can create beautiful, ecologically valuable landscapes while leaving rare treasures like Krause’s sorrel to thrive in their wild Alaskan homes. After all, some plants are meant to be wild – and that’s exactly what makes them special.

Krause’s Sorrel

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Polygonales

Family

Polygonaceae Juss. - Buckwheat family

Genus

Rumex L. - dock

Species

Rumex krausei Jurtzev & V.V. Petrovsky - Krause's sorrel

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