North America Native Plant

Jawleaf Lupine

Botanical name: Lupinus malacophyllus

USDA symbol: LUMA2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Jawleaf Lupine: A Rare Nevada Native Worth Knowing Meet the jawleaf lupine (Lupinus malacophyllus), a charming little wildflower that’s as exclusive as it gets in the plant world. This annual lupine calls Nevada home and nowhere else on Earth, making it a true botanical treasure for those lucky enough to ...

Rare plant alert!

Region: Conservation status by state

Status: S3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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 ⚘

Jawleaf Lupine: A Rare Nevada Native Worth Knowing

Meet the jawleaf lupine (Lupinus malacophyllus), a charming little wildflower that’s as exclusive as it gets in the plant world. This annual lupine calls Nevada home and nowhere else on Earth, making it a true botanical treasure for those lucky enough to encounter it in the wild or dedicated enough to grow it responsibly.

What Makes Jawleaf Lupine Special?

Jawleaf lupine is what botanists call a forb – basically a non-woody flowering plant that completes its entire life cycle in just one growing season. Don’t let its humble annual status fool you though; this little Nevada native packs plenty of character into its brief time in the spotlight.

As a member of the pea family, jawleaf lupine sports the classic lupine look with its distinctive flower spikes and palmate leaves. The plant stays relatively compact, making it perfect for those intimate garden spaces where every plant needs to earn its keep.

Where Does It Call Home?

This exclusive little lupine has chosen Nevada as its one and only home state. You won’t find it growing wild anywhere else in the United States, which makes it pretty special in the native plant world. Its limited distribution means it’s perfectly adapted to Nevada’s unique climate and soil conditions.

The Conservation Reality Check

Here’s where things get a bit serious. Jawleaf lupine has an uncertain conservation status, which means scientists aren’t entirely sure how well it’s doing in the wild. This uncertainty, combined with its limited range, means we need to be extra thoughtful about how we interact with this species.

If you’re considering adding jawleaf lupine to your garden, please make sure any seeds or plants come from responsible, ethical sources. Never collect from wild populations, as this could harm the species’ long-term survival.

Garden Potential and Landscape Role

For Nevada gardeners passionate about native plants, jawleaf lupine offers a unique opportunity to grow something truly local. It works beautifully in:

  • Native wildflower meadows
  • Xerophytic (dry-loving) garden designs
  • Conservation-focused landscapes
  • Educational demonstration gardens

As an annual, it won’t provide permanent structure to your landscape, but it can add seasonal interest and help support local ecosystems when grown appropriately.

Growing Jawleaf Lupine Successfully

Like most Nevada natives, jawleaf lupine has adapted to thrive in challenging conditions. While specific growing requirements for this species aren’t well-documented, we can make educated guesses based on its native habitat and related lupine species.

The plant likely prefers:

  • Well-draining soils (essential for most desert plants)
  • Full sun to partial shade
  • Minimal supplemental watering once established
  • USDA hardiness zones 5-8 (based on Nevada’s climate)

Planting and Care Tips

Since jawleaf lupine is an annual, you’ll need to start fresh from seed each year. Here are some general guidelines:

  • Sow seeds in fall or early spring
  • Scarify seeds lightly to improve germination (lupine seeds have tough coats)
  • Plant in well-draining soil – soggy conditions are usually a death sentence
  • Water sparingly once plants are established
  • Allow plants to set seed if you want them to return next year

Supporting Pollinators and Wildlife

While specific data on jawleaf lupine’s wildlife benefits isn’t readily available, lupines as a group are generally excellent pollinator plants. Native bees, butterflies, and other beneficial insects typically appreciate lupine flowers for their nectar and pollen.

Should You Grow Jawleaf Lupine?

This is a plant for the dedicated native plant enthusiast rather than the casual gardener. If you’re in Nevada and passionate about growing truly local species, jawleaf lupine could be a meaningful addition to your garden – but only if you can source it responsibly.

For most gardeners, consider supporting conservation efforts for rare species like this one while choosing more readily available native alternatives for your landscape. Nevada has plenty of other beautiful native lupines and wildflowers that can provide similar benefits without the conservation concerns.

Remember, sometimes the best way to love a rare plant is to admire it from afar and work to protect its wild habitat rather than bringing it into cultivation.

Jawleaf 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 malacophyllus Greene - jawleaf lupine

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