North America Native Plant

Southern California Draba

Botanical name: Draba corrugata var. saxosa

USDA symbol: DRCOS

Life cycle: biennial

Habit: forb

Native status: Native to the lower 48 states  

Southern California Draba: A Rare Native Gem Worth Protecting Meet the Southern California draba (Draba corrugata var. saxosa), a little-known native wildflower that’s as elusive as it is special. This diminutive beauty belongs to California’s exclusive club of rare native plants, making it a fascinating subject for native plant enthusiasts ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3T2T3: 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) ⚘ 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 ⚘ Subspecies or variety is 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. ⚘

Southern California Draba: A Rare Native Gem Worth Protecting

Meet the Southern California draba (Draba corrugata var. saxosa), a little-known native wildflower that’s as elusive as it is special. This diminutive beauty belongs to California’s exclusive club of rare native plants, making it a fascinating subject for native plant enthusiasts who appreciate botanical rarities.

What Exactly Is Southern California Draba?

Southern California draba is a native forb – basically a fancy botanical term for a soft-stemmed flowering plant that isn’t a grass, sedge, or woody shrub. Think of it as nature’s version of a delicate wildflower that can live for multiple years as either a biennial or perennial, depending on conditions.

Unlike woody plants that develop thick, bark-covered stems, this charming little plant stays soft and herbaceous throughout its life, with growing points that hunker down at or below ground level to weather tough times.

Where Does It Call Home?

This draba is a true California native, found exclusively within the Golden State’s borders. As its common name suggests, it’s particularly associated with Southern California’s unique ecosystems, though specific habitat details remain somewhat mysterious due to its rarity.

The Rarity Factor: Why This Plant Needs Our Attention

Here’s where things get serious – Southern California draba carries a conservation status of S2S3T2T3, which translates to rare in plain English. This means the plant faces real conservation challenges and isn’t something you’ll stumble across on your average nature hike.

For gardeners interested in this species, this rarity status comes with responsibility. If you’re drawn to growing this native beauty, it’s absolutely crucial to source plants or seeds only from reputable native plant nurseries that practice ethical collection and propagation methods. Never collect from wild populations!

Should You Grow Southern California Draba?

The honest answer? Probably not, unless you’re a serious native plant collector with experience growing rare species. Here’s why:

  • Limited availability makes it difficult to source responsibly
  • Specific growing requirements aren’t well-documented
  • Its rarity means cultivation mistakes could impact conservation efforts
  • There are many other beautiful, more readily available California natives to choose from

Better Alternatives for Your Native Garden

If you’re inspired by the idea of growing California draba species, consider these more common and garden-friendly alternatives:

  • Other Draba species that aren’t rare
  • Native California wildflowers with similar delicate charm
  • Common native forbs that provide similar ecological benefits

Supporting Conservation Instead

Sometimes the best way to grow a rare plant is to support its conservation in the wild. Consider donating to California native plant societies, participating in habitat restoration projects, or simply spreading awareness about the importance of protecting rare native species like Southern California draba.

Remember, every rare native plant tells a story about California’s unique natural heritage. By respecting their rarity and supporting conservation efforts, we help ensure these botanical treasures continue to thrive in their natural homes for generations to come.

Southern California 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 corrugata S. Watson - Southern California draba

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