North America Native Plant

Hall’s Columbiadoria

Botanical name: Columbiadoria hallii

USDA symbol: COHA5

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Haplopappus hallii A. Gray (HAHA)  âš˜  Hesperodoria hallii (A. Gray) Greene (HEHA3)   

Hall’s Columbiadoria: A Pacific Northwest Native Worth Knowing Meet Hall’s columbiadoria (Columbiadoria hallii), a perennial native wildflower that calls the Pacific Northwest home. While this plant might not be a household name in native gardening circles, it represents the kind of regional treasure that makes exploring local flora so rewarding. ...

Hall’s Columbiadoria: A Pacific Northwest Native Worth Knowing

Meet Hall’s columbiadoria (Columbiadoria hallii), a perennial native wildflower that calls the Pacific Northwest home. While this plant might not be a household name in native gardening circles, it represents the kind of regional treasure that makes exploring local flora so rewarding.

What Is Hall’s Columbiadoria?

Hall’s columbiadoria is a perennial forb—essentially a non-woody flowering plant that comes back year after year. Unlike shrubs or trees, this herbaceous beauty lacks significant woody tissue and keeps its growing points at or below ground level, helping it survive through winter months.

You might also encounter this plant under its older scientific names, including Haplopappus hallii or Hesperodoria hallii, as botanical classifications have evolved over time.

Where Does It Grow?

This native species has a fairly limited range, naturally occurring in Oregon and Washington. As a true Pacific Northwest native, it’s perfectly adapted to the unique climate and growing conditions of this region.

Should You Plant Hall’s Columbiadoria?

Here’s where things get interesting—and a bit challenging. While Hall’s columbiadoria is undeniably a legitimate native plant worthy of consideration, detailed growing information is surprisingly scarce. This could mean a few things:

  • It may be quite rare or have a very specific habitat niche
  • It might not be commonly available in the horticultural trade
  • Its growing requirements could be quite specialized

The Native Plant Advantage

Despite the limited information available, Hall’s columbiadoria has the fundamental advantage that all native plants share: it’s perfectly suited to its local environment. Native plants typically require less water once established, provide better wildlife habitat, and contribute to regional biodiversity.

Growing Challenges and Considerations

If you’re determined to grow Hall’s columbiadoria, you’ll likely need to do some detective work. Since specific growing requirements aren’t well-documented, consider these general approaches:

  • Research its natural habitat conditions in Oregon and Washington
  • Contact local native plant societies or botanical gardens for insights
  • Ensure any plant material is ethically and sustainably sourced
  • Start with a small trial area to observe how it performs in your garden

Alternative Pacific Northwest Natives

While you’re hunting for information about Hall’s columbiadoria, consider these well-documented Pacific Northwest natives that might fill a similar niche:

  • Oregon sunshine (Eriophyllum lanatum)
  • Western aster (Symphyotrichum chilense)
  • Seashore lupine (Lupinus littoralis)
  • Yarrow (Achillea millefolium)

The Bottom Line

Hall’s columbiadoria represents both the excitement and frustration of native plant gardening. While it’s a legitimate native species with potential garden value, the lack of readily available growing information makes it more of a specialist’s plant than a beginner-friendly choice.

If you’re an experienced native plant gardener who enjoys a challenge, tracking down and successfully growing Hall’s columbiadoria could be incredibly rewarding. For most gardeners, however, starting with better-documented Pacific Northwest natives might be a more practical approach to supporting local ecosystems while ensuring gardening success.

Hall’s Columbiadoria

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Columbiadoria G.L. Nesom - columbiadoria

Species

Columbiadoria hallii (A. Gray) G.L. Nesom - Hall's columbiadoria

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