North America Native Plant

Washoe Lupine

Botanical name: Lupinus lyallii washoensis

USDA symbol: LULYW

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Lupinus aridus Douglas var. washoensis (A. Heller) C.P. Sm. (LUARW)  âš˜  Lupinus washoensis A. Heller (LUWA3)   

Washoe Lupine: A Rare Nevada Native Worth Knowing About If you’re a native plant enthusiast with a passion for rare species, you might have stumbled across the intriguing Washoe lupine (Lupinus lyallii washoensis). This perennial wildflower represents one of Nevada’s botanical treasures, though finding detailed information about it can feel ...

Rare plant alert!

Region: Conservation status by state

Status: S5T1T2Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Subspecies or variety is critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ 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) ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Washoe Lupine: A Rare Nevada Native Worth Knowing About

If you’re a native plant enthusiast with a passion for rare species, you might have stumbled across the intriguing Washoe lupine (Lupinus lyallii washoensis). This perennial wildflower represents one of Nevada’s botanical treasures, though finding detailed information about it can feel like searching for a needle in a haystack.

What Makes Washoe Lupine Special

The Washoe lupine is a native perennial forb—essentially a non-woody flowering plant that returns year after year. As a member of the lupine family, it shares the characteristic pea-like flowers and palmate leaves that make lupines so recognizable. However, this particular subspecies is found exclusively in Nevada, making it a true regional specialty.

This plant goes by the botanical name Lupinus lyallii washoensis and has historically been known by synonyms including Lupinus washoensis and Lupinus aridus var. washoensis—names that botanists have shuffled around as they’ve worked to better understand plant relationships.

Geographic Distribution and Rarity

The Washoe lupine calls Nevada home, and Nevada alone. This limited geographic distribution is part of what makes this plant so special—and so rare. With a Global Conservation Status of S5T1T2Q, this plant falls into a somewhat undefined conservation category, which typically indicates that more research is needed to fully understand its status.

A Word of Caution for Gardeners

Important: Due to its rarity status, the Washoe lupine requires special consideration. If you’re interested in growing this plant, it’s crucial to source it only through responsible channels that don’t impact wild populations. Never collect seeds or plants from natural habitats, as this could harm already vulnerable populations.

The Information Gap

Here’s where things get tricky for gardeners: detailed growing information for Washoe lupine is remarkably scarce. Unlike its more common lupine cousins, specific data about preferred growing conditions, hardiness zones, and care requirements for this subspecies simply isn’t readily available in horticultural literature.

What we do know is that it’s a perennial forb, meaning it lacks significant woody growth and has buds that survive at or below ground level through winter. Beyond that basic growth habit, gardeners interested in this plant would need to rely on general lupine care principles and Nevada’s native growing conditions.

Should You Grow Washoe Lupine?

Given the limited information and rarity status, most home gardeners should probably look to other Nevada native alternatives that are better documented and more readily available. Consider these options instead:

  • Desert lupine (Lupinus odoratus) – better studied and more available
  • Other Nevada native wildflowers with similar ecological benefits
  • Well-documented lupine species appropriate for your specific growing conditions

For the Dedicated Rare Plant Enthusiast

If you’re specifically interested in rare plant conservation and have experience with challenging native species, the Washoe lupine might be worth pursuing—but only through proper channels. Contact native plant societies, botanical gardens, or conservation organizations that work with rare Nevada flora. They may have information about responsible propagation efforts or seed availability that doesn’t impact wild populations.

The Bigger Picture

The Washoe lupine serves as a reminder that our native flora includes countless species that are still poorly understood from a horticultural perspective. While we can’t provide a complete growing guide for this particular plant, its existence highlights the incredible diversity of Nevada’s native plant communities and the importance of protecting these unique ecosystems.

For most gardeners, supporting native plant conservation might mean choosing better-documented alternatives while supporting organizations that work to preserve rare species like the Washoe lupine in their natural habitats. Sometimes the best way to appreciate a rare plant is to ensure it continues thriving where nature intended it to grow.

Washoe Lupine

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Lupinus L. - lupine

Species

Lupinus lyallii A. Gray - dwarf mountain lupine

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