North America Non-native Plant

Hedysarum Multijugum

Botanical name: Hedysarum multijugum

USDA symbol: HEMU4

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

The Mysterious Hedysarum multijugum: When Plant Names Leave Us Puzzled Every now and then, we gardening enthusiasts stumble across a plant name that sends us down a rabbit hole of research, only to emerge more confused than when we started. Hedysarum multijugum is one of those botanical mysteries that keeps ...

The Mysterious Hedysarum multijugum: When Plant Names Leave Us Puzzled

Every now and then, we gardening enthusiasts stumble across a plant name that sends us down a rabbit hole of research, only to emerge more confused than when we started. Hedysarum multijugum is one of those botanical mysteries that keeps plant lovers scratching their heads.

What We Know (And Don’t Know)

Here’s the honest truth about Hedysarum multijugum: reliable information about this specific plant is surprisingly scarce. While the genus Hedysarum contains several well-documented species of leguminous plants commonly known as sweetvetches, this particular species name doesn’t appear in most standard botanical references.

What we can tell you is that plants in the Hedysarum genus are typically:

  • Members of the pea family (Fabaceae)
  • Known for their attractive, papilionaceous flowers
  • Often found in temperate regions
  • Nitrogen-fixing plants that can benefit soil health

The Geographic Mystery

While we can’t pinpoint the exact native range of Hedysarum multijugum, limited references suggest it may originate from Central Asian regions, possibly Mongolia or surrounding areas. However, without more definitive sources, this remains speculative.

Should You Try to Grow It?

Here’s where things get tricky. Because reliable information about Hedysarum multijugum’s growing requirements, invasive potential, and availability is so limited, we can’t recommend seeking it out for your garden. Instead, consider these well-documented alternatives from the same genus:

  • Hedysarum coronarium (Sulla sweetvetch) – a Mediterranean species
  • Hedysarum boreale (Northern sweetvetch) – native to northern North America
  • Hedysarum alpinum (Alpine sweetvetch) – found in mountainous regions

The Lesson in Plant Research

This mysterious plant teaches us an important lesson about gardening with native and unusual species: always verify your plant identification and research thoroughly before introducing any new species to your garden. Sometimes what appears to be a specific plant name might be:

  • An outdated or incorrect botanical name
  • A regional variant that’s been reclassified
  • A name that exists in limited databases but lacks widespread recognition

Moving Forward

If you’re interested in growing plants from the Hedysarum genus, we recommend starting with well-documented species that are known to be suitable for your region. Contact your local native plant society or extension office for guidance on which sweetvetch species might work best in your area.

Remember, successful native gardening is built on reliable information and responsible plant selection. When in doubt, choose plants with well-established growing guides and known benefits to local ecosystems.

Hedysarum Multijugum

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

Hedysarum L. - sweetvetch

Species

Hedysarum multijugum Maxim.

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