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Emory's milkvetch

Scientific Name: Astragalus emoryanus

Family: Fabaceae

Category: Dicot

Growth: Forb/herb

Duration: Annual, Biennial

Other Names:

       

Astragalus emoryanus

Also known as Emory's Milkvetch.

Considerations for Pets

  • Mentions of milkvetch poisoning in cattle and sheep suggest the presence of potentially harmful compounds.

Taxonomy and Nomenclature

  • Scientific Name: Astragalus emoryanus (Rydb.) Cory
  • Family: Fabaceae (Pea Family)
  • Synonyms:
    • Astragalus emoryanus var. terlinguensis (Cory) Barneby
    • Astragalus emoryanus var. emoryanus

Distribution and Habitat

  • Found in the west and southwest USA.
  • Specifically mentioned occurrences near Roswell, New Mexico, and Texas (TX).

Ecological Role

  • The text hints at phytosociological relationships and species' responses to habitats.

Morphological Characteristics

  • Hairy, prostrate stems.
  • Purple wildflowers.
  • Described as large in size, up to 17 meters in height.
  • Not evergreen, losing leaves in the autumn.

Plant-Animal Interactions

  • Emory milkvetch can be toxic to chicks, sheep and cattle, causing poisoning.

Quirky Facts

  • Emory milkvetch poisoning outbreak in cattle and sheep occurred near Roswell, New Mexico, in the spring of 1975, leading to a 2-3% mortality rate.
  • Emory milkvetch produces nitro compounds that appear to be the principal toxic constituent.

Further Resources

  • USDA is mentioned as a source of information.
  • Encyclopedia of Life is listed as providing information.