North America Native Plant

Alkali Cusickiella

Botanical name: Cusickiella douglasii

USDA symbol: CUDO3

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Draba douglasii A. Gray (DRDO)  âš˜  Draba douglasii A. Gray var. crockeri (Lemmon) C.L. Hitchc. (DRDOC)   

Alkali Cusickiella: A Hidden Gem Among Western Native Wildflowers If you’re a native plant enthusiast always on the hunt for something truly unique, let me introduce you to alkali cusickiella (Cusickiella douglasii). This little-known perennial forb might not be the showiest plant in the garden, but it represents the fascinating ...

Alkali Cusickiella: A Hidden Gem Among Western Native Wildflowers

If you’re a native plant enthusiast always on the hunt for something truly unique, let me introduce you to alkali cusickiella (Cusickiella douglasii). This little-known perennial forb might not be the showiest plant in the garden, but it represents the fascinating diversity of our western native flora and could be the perfect addition for gardeners seeking authentic regional character.

What Exactly Is Alkali Cusickiella?

Alkali cusickiella is a perennial forb belonging to the mustard family (Brassicaceae). As a forb, it’s an herbaceous plant without significant woody tissue—think of it as the botanical equivalent of a gentle, unassuming neighbor who’s been quietly living in the western states for centuries. You might also encounter this plant under its former scientific names, Draba douglasii or Draba douglasii var. crockeri, as botanical naming has evolved over time.

Where Does It Call Home?

This native beauty has quite an impressive range across the American West, naturally occurring in:

  • California
  • Idaho
  • Nevada
  • Oregon
  • Utah
  • Washington

Being native to these six western states makes alkali cusickiella a true regional specialist, adapted to the unique growing conditions of the western landscape.

Should You Plant Alkali Cusickiella?

Here’s where things get interesting—and a bit challenging. Alkali cusickiella is one of those native plants that exists in botanical obscurity. While it’s definitely native and carries no invasive concerns, finding detailed growing information or even nursery sources can be quite the treasure hunt.

This plant would be ideal for:

  • Native plant collectors seeking rare additions
  • Restoration projects in appropriate western habitats
  • Gardeners interested in authentic regional flora
  • Those creating specialized habitat gardens

The Growing Challenge

I’ll be honest with you—growing alkali cusickiella successfully might require some detective work. As its common name suggests, this plant likely has an affinity for alkaline soils, which makes sense given its natural range across many western alkaline landscapes.

Based on its geographic distribution, it would likely thrive in USDA hardiness zones typical of the western states where it’s found, probably ranging from zones 4-9 depending on elevation and specific location.

A Word About Availability

The biggest challenge with alkali cusickiella isn’t growing it—it’s finding it. This plant isn’t commonly available in the nursery trade, which means you’ll need to:

  • Contact specialty native plant nurseries in western states
  • Connect with native plant societies
  • Look for seed sources from botanical gardens or conservation organizations
  • Ensure any plant material is ethically and legally sourced

The Bottom Line

Alkali cusickiella represents the kind of plant that makes native gardening both challenging and rewarding. While it may not offer the instant gratification of more common natives, it provides an opportunity to connect with the subtle beauty of western flora and contribute to biodiversity conservation.

If you’re up for the adventure and can locate responsibly sourced plants or seeds, alkali cusickiella could become a unique conversation piece in your native garden. Just be prepared for some experimentation with growing conditions and patience as you learn this plant’s preferences.

For most gardeners, though, starting with more readily available western natives like penstemon, lupine, or native grasses might be a more practical choice while you hunt for this botanical treasure. After all, the best native garden is one that actually grows and thrives, even if it doesn’t include every rare species on your wish list!

Alkali Cusickiella

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

Cusickiella Rollins - cusickiella

Species

Cusickiella douglasii (A. Gray) Rollins - alkali cusickiella

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