North America Native Plant

Apache Milkvetch

Botanical name: Astragalus nutriosensis

USDA symbol: ASNU7

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Apache Milkvetch: A Rare Southwest Native Worth Protecting If you’re passionate about native plants and stumble across Apache milkvetch (Astragalus nutriosensis), you’ve discovered something quite special. This perennial legume represents one of the Southwest’s more elusive native treasures, and there’s good reason why you might not find it at your ...

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 ⚘

Apache Milkvetch: A Rare Southwest Native Worth Protecting

If you’re passionate about native plants and stumble across Apache milkvetch (Astragalus nutriosensis), you’ve discovered something quite special. This perennial legume represents one of the Southwest’s more elusive native treasures, and there’s good reason why you might not find it at your local nursery.

What Makes Apache Milkvetch Special?

Apache milkvetch is a true native of the American Southwest, calling only Arizona and New Mexico home. As a perennial member of the legume family, this plant has adapted to life in some of our most challenging desert and semi-arid environments. Like other milkvetches, it likely plays an important role in soil health by fixing nitrogen, making it a valuable member of its native ecosystem.

Where You’ll Find It Growing Wild

This native beauty has a pretty exclusive address – you’ll only find Apache milkvetch growing naturally in Arizona and New Mexico. Its limited range makes it a true regional specialty, perfectly adapted to the unique conditions of the Southwest.

A Word of Caution: Rarity Concerns

Here’s where things get important for responsible gardeners. Apache milkvetch carries a conservation status of S3?, which suggests it may be uncommon to rare, though the exact status needs clarification. This potential rarity means we need to be extra thoughtful about how we approach this plant.

If you’re considering adding Apache milkvetch to your garden, please keep these guidelines in mind:

  • Only source plants or seeds from reputable native plant nurseries that can verify ethical collection practices
  • Never collect from wild populations – this could harm already vulnerable communities
  • Consider whether other, more common native milkvetches might serve your garden goals just as well
  • If you do grow it, consider participating in seed collection and sharing to help preserve genetic diversity

Growing Apache Milkvetch: Proceed with Knowledge

Unfortunately, detailed cultivation information for this specific species is quite limited. This isn’t uncommon for rare native plants that haven’t been widely studied or grown in gardens. What we can assume, based on its native range and family relationships, is that it likely prefers:

  • Well-draining soils typical of desert and semi-arid environments
  • Full sun exposure
  • Minimal supplemental watering once established
  • Hot, dry conditions that would challenge many other plants

Should You Grow Apache Milkvetch?

This is a plant for the truly dedicated native plant enthusiast who can commit to responsible sourcing and careful cultivation. If you’re new to native gardening or looking for reliable, well-documented plants, you might want to start with other southwestern natives that are better understood and more readily available.

However, if you’re an experienced native gardener with a particular passion for rare plants and access to ethically sourced material, Apache milkvetch could be a meaningful addition to a specialized native plant collection.

Alternative Southwest Natives to Consider

If Apache milkvetch isn’t the right fit for your garden, consider these other beautiful southwestern natives:

  • Desert lupine (Lupinus sparsiflorus) – another nitrogen-fixing native with showy flowers
  • Fairy duster (Calliandra eriophylla) – a reliable, pollinator-friendly shrub
  • Desert marigold (Baileya multiradiata) – cheerful yellow blooms nearly year-round

The world of native plants offers so many wonderful options that there’s always something perfect for your garden goals and growing conditions. Whether you choose the rare and special Apache milkvetch or one of its more common cousins, you’ll be supporting local ecosystems and creating habitat for native wildlife.

Apache 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 nutriosensis S.C. Sand. - Apache milkvetch

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