Native Plants

Pauper Milkvetch

Astragalus misellus var. misellus

USDA symbol: ASMIM3

perennial forb

Lower 48 states: native

Meet the pauper milkvetch (Astragalus misellus var. misellus), a perennial native plant that’s as elusive as its common name suggests. This little-known member of the legume family calls Oregon home, but don’t expect to find it at your local nursery—this is one of those special plants that flies well under ...

Pauper Milkvetch may be listed as rare in your area.
Global Conservation Status

Status: S4T3T4 | Subspecies or varieties apparently secure: Uncommon but not rare, and usually widespread. Possible cause for longterm concern. Typically more than 100 occurrences or more than 10,000 individuals.

Pauper Milkvetch: A Rare Oregon Native Worth Knowing About

Meet the pauper milkvetch (Astragalus misellus var. misellus), a perennial native plant that’s as elusive as its common name suggests. This little-known member of the legume family calls Oregon home, but don’t expect to find it at your local nursery—this is one of those special plants that flies well under the radar.

A Truly Oregon Original

Pauper milkvetch is native to the lower 48 states, with its primary home range in Oregon. As a true Pacific Northwest native, it has evolved alongside the region’s unique ecosystem and plays its own small part in the complex web of native plant communities. This perennial has been quietly growing in Oregon’s landscapes long before European settlement, making it a genuine piece of the state’s natural heritage.

  • Species observed
  • No observations

The Rarity Factor: Handle with Care

Here’s where things get interesting—and important. Pauper milkvetch carries a Global Conservation Status of S4T3T4, which indicates it’s considered uncommon to rare. This means if you’re thinking about adding this native beauty to your garden, you’ll want to be extra thoughtful about where you source your plants or seeds.

Important note: If you decide to grow pauper milkvetch, only obtain plants or seeds from reputable native plant nurseries that can guarantee their stock comes from ethical, sustainable sources. Never collect from wild populations—this rare native needs all the help it can get to maintain stable numbers in its natural habitat.

The Mystery of Growing Pauper Milkvetch

Here’s where we hit a bit of a roadblock. Information about the specific growing requirements, care needs, and garden performance of pauper milkvetch is surprisingly scarce. This isn’t uncommon with rare native plants—they often haven’t been extensively studied for cultivation purposes because they’re not widely grown.

What we do know is that as a member of the Astragalus genus (also known as milkvetches), it’s likely a member of the legume family, which typically means:

  • It probably has the ability to fix nitrogen in the soil
  • It may produce small, pea-like flowers
  • It’s adapted to Oregon’s climate conditions

Should You Grow Pauper Milkvetch?

The honest answer is: it’s complicated. While supporting rare native plants is always admirable, the lack of cultivation information makes this a challenging choice for most home gardeners. If you’re determined to grow this Oregon native, consider reaching out to:

  • Local native plant societies
  • University extension programs
  • Specialized native plant nurseries
  • Botanical gardens with native plant programs

These experts may have insights into growing conditions, care requirements, or even availability through conservation programs.

Alternative Oregon Natives

If you’re drawn to the idea of growing Oregon’s native milkvetches but want something with more available growing information, consider looking into other Astragalus species that are better documented and more readily available through native plant sources.

The Bottom Line

Pauper milkvetch represents the fascinating world of rare native plants—species that are part of our natural heritage but remain largely mysterious in cultivation. While we can’t provide a detailed growing guide for this elusive Oregon native, its story reminds us that there’s still so much to discover about the plants that call our regions home.

If you’re passionate about rare natives and have experience with challenging plants, pauper milkvetch might be worth investigating further. Just remember to source responsibly and perhaps consider it a long-term project rather than a quick garden addition.

Astragalus misellus var. misellus 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. Astragalus misellus var. misellus is also known as:

Astragalus howellii Gray var. aberrans | USDA symbol: ASHOA

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: Astragalus L. - milkvetch

Species: Astragalus misellus S. Watson - pauper milkvetch

Variety: Astragalus misellus S. Watson var. misellus - pauper milkvetch

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