North America Native Plant

Pagumpa Milkvetch

Botanical name: Astragalus ensiformis var. gracilior

USDA symbol: ASENG

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Astragalus minthorniae (Rydb.) Jeps. var. gracilior (Barneby) Barneby (ASMIG)   

Pagumpa Milkvetch: A Rare Native Gem for Desert Gardens Meet the pagumpa milkvetch (Astragalus ensiformis var. gracilior), a lesser-known native perennial that calls the desert regions of Nevada and Utah home. This member of the pea family might not be on every gardener’s radar, but for those passionate about preserving ...

Rare plant alert!

Region: Conservation status by state

Status: S3T1T2Q: 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) ⚘ 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 ⚘

Pagumpa Milkvetch: A Rare Native Gem for Desert Gardens

Meet the pagumpa milkvetch (Astragalus ensiformis var. gracilior), a lesser-known native perennial that calls the desert regions of Nevada and Utah home. This member of the pea family might not be on every gardener’s radar, but for those passionate about preserving rare native plants and creating authentic regional landscapes, it presents both an opportunity and a responsibility.

What Is Pagumpa Milkvetch?

Pagumpa milkvetch is a perennial plant native to the lower 48 states, specifically found in Nevada and Utah. As part of the extensive Astragalus genus—commonly known as milkvetches—this variety represents one of nature’s more specialized adaptations to harsh desert conditions. The plant may also be known by its synonym, Astragalus minthorniae var. gracilior.

Like other members of the pea family (Fabaceae), milkvetches typically have the superpower of fixing nitrogen in the soil, making them valuable ecosystem players in their native habitats.

A Word of Caution: Rarity Matters

Here’s where things get serious, fellow plant lovers. Pagumpa milkvetch has a conservation status of S3T1T2Q, which indicates this variety is quite rare and potentially at risk. This means if you’re considering adding this plant to your garden, you absolutely must source it responsibly—never collect from wild populations, and only purchase from reputable native plant nurseries that propagate their own stock.

Why Consider Pagumpa Milkvetch?

While information about this specific variety is limited, there are compelling reasons why dedicated native plant gardeners might seek it out:

  • Supports regional biodiversity and conservation efforts
  • Adapted to harsh, arid conditions typical of Nevada and Utah
  • As a legume, likely provides nitrogen fixation benefits to surrounding plants
  • Represents authentic Great Basin flora
  • Perfect for gardeners creating habitat-specific native landscapes

Growing Conditions and Care

Since specific cultivation information for pagumpa milkvetch is scarce, we can make educated guesses based on its native range and related species. This plant likely thrives in:

  • Full sun exposure
  • Well-draining, possibly alkaline soils typical of desert regions
  • Low water conditions once established
  • Areas with significant temperature fluctuations

Given its Nevada and Utah origins, this milkvetch probably handles cold winters and scorching summers with equal aplomb—typical characteristics of high desert plants.

Is This Plant Right for Your Garden?

Pagumpa milkvetch isn’t for everyone. Consider this variety if you:

  • Live in Nevada or Utah (or similar climatic conditions)
  • Are passionate about rare plant conservation
  • Want to create an authentic Great Basin or high desert landscape
  • Have experience growing challenging native plants
  • Can source plants responsibly from reputable nurseries

The Bottom Line

Pagumpa milkvetch represents both the beauty and responsibility that comes with native plant gardening. While it may reward dedicated growers with authentic regional character and conservation value, its rarity means this isn’t a plant to grow on a whim. If you’re drawn to this desert gem, do your homework, source responsibly, and consider it part of a larger commitment to preserving our native plant heritage.

For most gardeners interested in milkvetches, consider exploring more common Astragalus species that offer similar benefits without the conservation concerns. But for those ready to take on the challenge of growing something truly special, pagumpa milkvetch might just be your next meaningful gardening adventure.

Pagumpa 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 ensiformis M.E. Jones - pagumpa milkvetch

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