North America Non-native Plant

Astragalus Bungeanus

Botanical name: Astragalus bungeanus

USDA symbol: ASBU2

Native status: Not native but doesn't reproduce and persist in the wild

Astragalus bungeanus: A Mystery Plant Worth Understanding If you’ve stumbled across the name Astragalus bungeanus in your plant research, you’re not alone in wondering what exactly this species is all about. This member of the legume family falls into that intriguing category of plants that botanical references mention but gardening ...

Astragalus bungeanus: A Mystery Plant Worth Understanding

If you’ve stumbled across the name Astragalus bungeanus in your plant research, you’re not alone in wondering what exactly this species is all about. This member of the legume family falls into that intriguing category of plants that botanical references mention but gardening guides rarely discuss in detail.

What We Know (And Don’t Know)

Astragalus bungeanus belongs to the vast Astragalus genus, which includes hundreds of species commonly known as milkvetches or locoweeds. However, unlike some of its more famous cousins, this particular species remains somewhat of an enigma in the gardening world. The lack of common names and limited cultivation information suggests it’s either very specialized in its native habitat or simply hasn’t made the jump into mainstream horticulture.

Geographic Distribution and Native Status

The geographic distribution of Astragalus bungeanus isn’t well-documented in readily available horticultural resources. This uncertainty makes it challenging to determine its native status in North American gardens or its potential growing requirements.

Should You Try Growing It?

Here’s where things get honest: with so little information available about Astragalus bungeanus, it’s difficult to recommend it for home gardens. When a plant species lacks well-documented growing conditions, hardiness zones, and care requirements, it often means:

  • It may be challenging to source from reputable nurseries
  • Growing success could be unpredictable
  • You might be experimenting rather than gardening with confidence

Better Alternatives to Consider

If you’re drawn to the Astragalus genus, consider these better-documented native alternatives that offer similar ecological benefits:

  • Ground plum (Astragalus crassicarpus) – native to the Great Plains
  • Canadian milkvetch (Astragalus canadensis) – widespread across North America
  • Purple prairie clover (Dalea purpurea) – another native legume with excellent pollinator appeal

The Takeaway

While Astragalus bungeanus might sound intriguing, sometimes the best gardening advice is knowing when to step back. Instead of chasing after poorly documented species, focus your energy on well-researched native plants that will thrive in your garden and support local ecosystems. Your pollinators (and your gardening success rate) will thank you for choosing plants with proven track records and available growing guidance.

If you’re determined to explore unusual Astragalus species, connect with native plant societies or botanical gardens in your area—they might have insights or even seeds for regional species that would be more appropriate for your specific location.

Astragalus Bungeanus

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 bungeanus Boiss.

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