North America Native Plant

Wallowa Cryptantha

Botanical name: Cryptantha subcapitata

USDA symbol: CRSU15

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Wallowa Cryptantha: A Rare Wyoming Native Worth Protecting Meet the Wallowa cryptantha, a little-known perennial wildflower that’s as rare as it is special. This modest Wyoming native might not win any beauty contests, but it holds a unique place in the world of conservation gardening and native plant preservation. What ...

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) ⚘

Wallowa Cryptantha: A Rare Wyoming Native Worth Protecting

Meet the Wallowa cryptantha, a little-known perennial wildflower that’s as rare as it is special. This modest Wyoming native might not win any beauty contests, but it holds a unique place in the world of conservation gardening and native plant preservation.

What Makes Wallowa Cryptantha Special

Cryptantha subcapitata, commonly known as Wallowa cryptantha, is a perennial forb herb that belongs to the forget-me-not family. Unlike its woody cousins, this plant lacks significant woody tissue and keeps its growing buds at or below ground level—a smart survival strategy for harsh mountain conditions.

What truly sets this plant apart is its rarity. With a Global Conservation Status of S2, the Wallowa cryptantha is considered imperiled, with typically only 6 to 20 known occurrences and somewhere between 1,000 to 3,000 individual plants remaining in the wild.

Where You’ll Find This Mountain Treasure

The Wallowa cryptantha is a Wyoming exclusive, growing naturally only in this rugged western state. Its limited geographic distribution makes it a true regional specialty—think of it as Wyoming’s botanical signature plant.

Should You Grow Wallowa Cryptantha?

Here’s where things get interesting. While this native plant would be a fascinating addition to any conservation garden, its rarity means you need to be extra thoughtful about how you acquire it.

The Conservation Angle

If you’re passionate about preserving rare native plants, Wallowa cryptantha could be perfect for:

  • Conservation gardens focused on endangered species
  • Native plant collections in USDA zones 4-6
  • Rock gardens with excellent drainage
  • Educational landscapes highlighting regional biodiversity

The Reality Check

Before you get too excited, remember that this plant’s rarity means you absolutely must source it responsibly. Never collect from wild populations, and only purchase from reputable native plant nurseries that propagate from ethically sourced seed.

Growing Wallowa Cryptantha Successfully

If you manage to find responsibly sourced plants or seeds, here’s how to give them the best chance of thriving:

Perfect Growing Conditions

  • Sunlight: Full sun exposure
  • Soil: Well-draining, likely alkaline conditions
  • Water: Minimal requirements—this is a drought-tolerant mountain native
  • Climate: Hardy in zones 4-6, adapted to Wyoming’s challenging weather

Planting and Care Tips

Think less is more when caring for Wallowa cryptantha:

  • Avoid overwatering—this plant prefers drier conditions
  • Provide excellent drainage to prevent root rot
  • Consider adding gravel or sand to heavy soils
  • Plant in spring after the last frost
  • Mulch lightly with gravel rather than organic matter

Wildlife and Pollinator Benefits

While small in stature, Wallowa cryptantha produces tiny white flowers that attract specialized pollinators, particularly small native bees and other beneficial insects. Every rare native plant supports unique ecological relationships that we’re still discovering.

The Bottom Line

Wallowa cryptantha represents both an opportunity and a responsibility. If you can source it ethically, you’ll be participating in important conservation work while adding a truly unique Wyoming native to your garden. Just remember—with great rarity comes great responsibility. This isn’t a plant for casual gardeners, but for those committed to conservation, it’s a living piece of Wyoming’s natural heritage worth protecting.

Before planting, always verify that your source follows ethical collection practices and contributes to conservation rather than exploitation of wild populations. Sometimes the best way to appreciate a rare plant is to support its conservation in the wild while growing more common native alternatives in our gardens.

Wallowa Cryptantha

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

Lamiales

Family

Boraginaceae Juss. - Borage family

Genus

Cryptantha Lehm. ex G. Don - cryptantha

Species

Cryptantha subcapitata Dorn & Lichvar - Wallowa cryptantha

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