Native Plants

Ashland’s Lupine

Lupinus aridus ashlandensis

USDA symbol: LUARA

perennial forb

Lower 48 states: native

If you’re a native plant enthusiast with a passion for rare finds, you might have stumbled across Ashland’s lupine (Lupinus aridus ashlandensis) in your research. This perennial forb is one of Oregon’s botanical treasures, but before you start planning your garden around it, there are some important things you should ...

Ashland’s Lupine may be listed as rare in your area.
Global Conservation Status

Status: S5T1 | Secure: At low or no risk of extinction in the area due to an extensive range, abundant populations, and with little to no concern of declines or threats.

Ashland’s Lupine: A Rare Oregon Native Worth Knowing About

If you’re a native plant enthusiast with a passion for rare finds, you might have stumbled across Ashland’s lupine (Lupinus aridus ashlandensis) in your research. This perennial forb is one of Oregon’s botanical treasures, but before you start planning your garden around it, there are some important things you should know about this elusive native.

What Makes Ashland’s Lupine Special?

Ashland’s lupine is a subspecies of the arid lupine, distinguished by its specific adaptation to a very small geographic area. As a perennial forb, it’s an herbaceous plant that dies back to the ground each winter and returns the following spring. Like other members of the lupine family, it likely produces the characteristic spikes of pea-like flowers that make lupines so beloved by gardeners and pollinators alike.

You might also see this plant listed under its synonym, Lupinus lepidus Douglas ex Lindl. var. ashlandensis, in older botanical references.

Where Does It Grow?

Here’s where things get really interesting (and a bit concerning): Ashland’s lupine is found only in Oregon, with an extremely limited range that appears to be centered around the Ashland area. This tiny geographic footprint makes it one of the rarest lupines in North America.

  • Species observed
  • No observations

The Rarity Factor: Why This Matters for Gardeners

Ashland’s lupine carries a Global Conservation Status of S5T1, indicating it’s extremely rare and potentially vulnerable. This rarity status is crucial for any gardener considering this plant because:

  • Wild populations are very small and localized
  • Collecting from the wild could harm remaining populations
  • Commercial availability is virtually non-existent
  • Growing conditions and care requirements are poorly understood

Should You Grow Ashland’s Lupine?

While the idea of growing a rare native in your garden might be tempting, Ashland’s lupine presents some serious challenges. If you’re determined to include this species in your landscape, you absolutely must source it responsibly from reputable native plant nurseries or seed companies that can verify their material wasn’t collected from wild populations.

However, given the extreme rarity and limited availability, most gardeners would be better served by choosing other native lupine species that offer similar benefits without the conservation concerns.

Better Native Alternatives

Oregon has several other beautiful native lupines that are more readily available and better understood:

  • Large-leaved lupine (Lupinus polyphyllus) – Oregon’s state flower
  • Bigleaf lupine (Lupinus polyphyllus var. burkei)
  • Silky lupine (Lupinus sericeus)
  • Spurred lupine (Lupinus arbustus)

These alternatives will give you the classic lupine look with spiky flower clusters, nitrogen-fixing benefits for your soil, and pollinator support – all without the ethical and practical challenges of growing an extremely rare subspecies.

The Bottom Line

Ashland’s lupine represents the fascinating diversity of Oregon’s native flora, but it’s not a practical choice for most home gardens. Its extreme rarity means it’s better left to conservation efforts and specialized botanical collections. Instead, celebrate Oregon’s lupine heritage by choosing one of the more common native species that will thrive in your garden while supporting local pollinators and wildlife.

Remember, sometimes the best way to appreciate a rare plant is to admire it in its natural habitat and choose more sustainable alternatives for our home landscapes.

Lupinus aridus ashlandensis is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Lupinus aridus ashlandensis is also known as:

Lupinus lepidus Douglas ex var. ashlandensis | USDA symbol: LULEA5

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Rosidae
Order: Fabales
Family: Fabaceae Lindl. - Pea family
Genus: Lupinus L. - lupine

Species: Lupinus aridus Douglas - desert lupine

Subspecies: Lupinus aridus Douglas ssp. ashlandensis Cox - Ashland's lupine

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