Native Plants

Longspur Lupine

Lupinus arbustus arbustus var. arbustus

USDA symbol: LUARA10

perennial subshrub

Lower 48 states: native

If you’re passionate about native plants and love discovering hidden gems for your garden, longspur lupine (Lupinus arbustus arbustus var. arbustus) might just pique your curiosity. This perennial wildflower represents one of the more elusive members of the beloved lupine family, and while it’s not commonly found in garden centers, ...

Longspur Lupine may be listed as rare in your area.
Global Conservation Status

Status: S5T1T3Q | 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.

Longspur Lupine: A Rare Pacific Northwest Native Worth Knowing

If you’re passionate about native plants and love discovering hidden gems for your garden, longspur lupine (Lupinus arbustus arbustus var. arbustus) might just pique your curiosity. This perennial wildflower represents one of the more elusive members of the beloved lupine family, and while it’s not commonly found in garden centers, it offers a fascinating glimpse into the Pacific Northwest’s rich botanical heritage.

What Makes Longspur Lupine Special?

Longspur lupine is a true Washington native, belonging to the extensive and colorful lupine family that gardeners across the country have come to adore. As a perennial forb, this plant lacks the woody stems of shrubs and trees, instead producing herbaceous growth that dies back each winter and returns with renewed vigor each spring.

What sets this particular lupine apart is its rarity – it carries a conservation status that suggests it’s quite uncommon in the wild. This makes it both intriguing and important from a conservation perspective.

Where Does It Call Home?

This native beauty is found exclusively in Washington state, making it a true regional specialty. Its limited range adds to its mystique and underscores the importance of preserving our local plant communities.

  • Species observed
  • No observations

Should You Grow Longspur Lupine?

Here’s where things get interesting – and a bit cautious. Because longspur lupine appears to be quite rare, any gardener considering adding it to their landscape should approach with care and responsibility.

The Conservation Consideration

If you’re drawn to this unique lupine, here are the key points to consider:

  • Source responsibly: Never collect plants from the wild. Only obtain plants or seeds from reputable native plant nurseries that can verify their ethical sourcing
  • Support conservation: Growing rare natives in gardens can help preserve genetic diversity, but only when done through proper channels
  • Be patient: Rare plants often require patience to source – you may need to special order or join a waitlist

Growing Conditions (Best Guesses)

While specific growing requirements for this exact variety aren’t well-documented, we can make educated assumptions based on its lupine family traits and Washington origins:

  • Soil: Likely prefers well-draining soils, as most lupines do
  • Sunlight: Probably thrives in full sun to partial shade
  • Water: As a Washington native, it’s likely adapted to the region’s wet winters and dry summers
  • Climate: Hardy in Pacific Northwest conditions

Alternative Options

If longspur lupine proves difficult to source (which it likely will), consider these more readily available Pacific Northwest lupines:

  • Large-leaved lupine (Lupinus polyphyllus): A showy native with tall flower spikes
  • Riverbank lupine (Lupinus rivularis): Perfect for moist areas
  • Broadleaf lupine (Lupinus latifolius): Great for mountain gardens

The Bigger Picture

Whether or not you ever get your hands on longspur lupine, learning about rare natives like this one reminds us of the incredible diversity hiding in our local ecosystems. These plants represent evolutionary stories millions of years in the making, and they deserve our respect and protection.

If you’re passionate about native plants, consider supporting local botanical surveys, native plant societies, and conservation efforts. Sometimes the most valuable contribution we can make is simply appreciating these botanical treasures where they naturally occur and ensuring their wild habitats remain protected for future generations to discover and admire.

Lupinus arbustus arbustus var. arbustus 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 arbustus arbustus var. arbustus is also known as:

Lupinus laxiflorus Douglas ex var. arbustus | USDA symbol: LULAA

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 arbustus Douglas ex Lindl. - longspur lupine

Subspecies: Lupinus arbustus Douglas ex Lindl. ssp. arbustus - longspur lupine
Variety: Lupinus arbustus Douglas ex Lindl. ssp. arbustus var. arbustus - longspur lupine

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