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spiny milkvetch

Scientific Name: Astragalus kentrophyta var. kentrophyta

Family: Fabaceae

Category: Dicot

Growth: Subshrub, Forb/herb

Duration: Perennial

Other Names:

       

Astragalus kentrophyta: Spiny Milkvetch

Astragalus kentrophyta, commonly known as spiny milkvetch, is a perennial subshrub belonging to the Fabaceae (Pea) family. This plant is native to western North America.

Considerations for Pets

  • The plant is known as "spiny milkvetch" and is said to form clumps with persistent, spiny leaf stalks.

Considerations for Children

  • The plant is known as "spiny milkvetch" and is said to form clumps with persistent, spiny leaf stalks.

Taxonomy and Nomenclature

  • Scientific Name: Astragalus kentrophyta A. Gray
  • Family: Fabaceae (Pea Family)
  • Rank: Species
  • Synonyms:
    • Nuttall?s kentrophyta
    • Thistle milkvetch
    • Prickly milkvetch
  • Varieties:
    • Astragalus kentrophyta var. kentrophyta
    • Astragalus kentrophyta var. coloradoensis M.E. Jones ("Colorado spiny milkvetch")
    • Astragalus kentrophyta var. elatus
    • Astragalus kentrophyta var. jessiae
  • Astragalus kentrophyta subsp. danaus (Barneby) W.A. Weber

Distribution and Habitat

  • Native to western North America, from central to west Canada.
  • Found in very dry, rocky meadows.
  • Grows above 10,000 feet in elevation.
  • Observed in Idaho.

Morphological Characteristics

  • Perennial subshrub forb/herb.
  • Forms diminutive, tufted clumps up to 30 cm across.
  • Crown with persistent, spiny leaf stalks.
  • Stems up to 1 cm.
  • Petals: 5
  • Leaf form: Pinnate
  • Leaf margin: Entire

Additional Details

  • Flowering period: May-July.

Resources

  • USDA Symbol: ASKE
  • Discover Life
  • Encyclopedia of Life
  • CalPhotos
  • Dave's Garden