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Humboldt River milkvetch

Scientific Name: Astragalus iodanthus

Family: Fabaceae

Category: Dicot

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Astragalus iodanthus

Also known as Humboldt River milkvetch and violet milkvetch, Astragalus iodanthus is a flowering plant belonging to the legume family.

Considerations for Pets

  • This plant is a milkvetch, and many milkvetch species are known as "locoweed."

Taxonomy and Nomenclature

  • Scientific Name: Astragalus iodanthus S. Watson
  • Family: Fabaceae (Legume family)
  • Genus: Astragalus L.
  • Common Names: Humboldt River milkvetch, violet milkvetch, milkvetch (general for many species), locoweed (general for many species).
  • Synonyms: Tragacantha iodantha (S. Watson) Kuntze, Xylophacos iodanthus (S. Watson) Rydb.
  • Varieties:
    • Astragalus iodanthus S. Watson var. iodanthus (Humboldt River milkvetch)
    • Astragalus iodanthus var. diaphanoides Barneby (snake milkvetch)

Distribution and Habitat

  • Astragalus iodanthus is found in the western United States, including areas near the Humboldt River in Nevada.
  • Specific locations mentioned include:
    • Willow Creek, Trout Creek Mountains
    • Sweetwater Flat, Humboldt Toiyabe National Forest (elevation 2015 m / 6605 ft)
    • N. Fork of the Little Humboldt River
    • Santa Rosa Range, Humboldt National Forest

Morphological Characteristics and Growth Habits

  • Astragalus iodanthus is a forb/herb, defined as a non-woody plant that is not a grass.

Ecological Role

  • It is suggested to allow the plant to become nearly dry before watering.

Further Information

  • USDA-NRCS PLANTS Database
  • Discover Life's page about the biology, natural history, ecology, identification, and distribution of Astragalus iodanthus.