North America Native Plant

Nevada Milkvetch

Botanical name: Astragalus bisulcatus var. nevadensis

USDA symbol: ASBIN

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Nevada Milkvetch: A Rare Desert Treasure Worth Knowing Meet Nevada milkvetch (Astragalus bisulcatus var. nevadensis), a fascinating perennial that calls the Silver State home. While you might not find this plant at your local garden center, understanding this native species can deepen your appreciation for the incredible diversity of plants ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Subspecies or variety is 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. ⚘ 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. ⚘

Nevada Milkvetch: A Rare Desert Treasure Worth Knowing

Meet Nevada milkvetch (Astragalus bisulcatus var. nevadensis), a fascinating perennial that calls the Silver State home. While you might not find this plant at your local garden center, understanding this native species can deepen your appreciation for the incredible diversity of plants that thrive in America’s arid landscapes.

Where Does Nevada Milkvetch Call Home?

This particular variety of milkvetch is endemic to Nevada, making it a true state specialty. As a native plant of the lower 48 states with such a restricted range, Nevada milkvetch represents the kind of regional botanical treasures that make each state’s flora unique and special.

What Makes This Plant Special?

Nevada milkvetch belongs to the legume family, which means it has the remarkable ability to fix nitrogen in the soil through a partnership with beneficial bacteria. This makes it not just a survivor in harsh desert conditions, but actually an improver of the soil around it. Like other milkvetches, this perennial likely produces clusters of small, pea-like flowers that add subtle beauty to the landscape.

Should You Consider Growing Nevada Milkvetch?

Here’s where things get interesting – and a bit complicated. This plant appears to have a conservation status that suggests it may be uncommon or of special concern. Before you fall in love with the idea of adding this Nevada native to your garden, there are a few important considerations:

  • Limited availability: You’re unlikely to find this plant in commercial nurseries
  • Potential rarity concerns: The conservation status suggests this variety may need protection
  • Specialized habitat needs: Desert natives often require very specific growing conditions
  • Regional restrictions: This plant is naturally found only in Nevada

Better Alternatives for Your Native Garden

If you’re drawn to the idea of growing milkvetches or other leguminous natives, consider looking for more widely available Astragalus species that are appropriate for your specific region. Many states have their own milkvetch species that are better suited to cultivation and more readily available through responsible sources.

For Nevada gardeners specifically, working with local native plant societies or botanical gardens can help you identify which milkvetches and other legumes are both appropriate for cultivation and available through ethical sources.

The Bigger Picture

While Nevada milkvetch might not be destined for your backyard, appreciating plants like this one reminds us why protecting natural habitats is so important. These specialized varieties often play crucial roles in their ecosystems, supporting specific pollinators and contributing to the complex web of desert life.

Every time you choose to plant natives in your own garden – even if they’re more common species – you’re supporting the same principles of biodiversity and ecological health that make rarities like Nevada milkvetch worth celebrating and protecting.

What You Can Do

Instead of trying to grow this particular variety, consider:

  • Supporting conservation organizations that protect Nevada’s native habitats
  • Choosing other native legumes appropriate for your region
  • Learning more about the native plants in your own area
  • Visiting Nevada’s natural areas to appreciate plants like this in their native habitat

Sometimes the most beautiful gardens are the ones that exist in nature, undisturbed and thriving exactly where they belong. Nevada milkvetch is one of those special plants that’s probably best admired from a respectful distance, reminding us that not every plant needs to make it into cultivation to be absolutely wonderful.

Nevada Milkvetch

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

Astragalus L. - milkvetch

Species

Astragalus bisulcatus (Hook.) A. Gray - twogrooved milkvetch

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