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Cooper's milkvetch

Scientific Name: Astragalus neglectus

Family: Fabaceae

Category: Dicot

Growth: Forb/herb

Duration: Perennial

Other Names: NY (Cooper's milkvetch), OH (Cooper's milk-vetch),

       

Cooper's Milkvetch (Astragalus neglectus)

Cooper's Milkvetch, scientifically known as Astragalus neglectus, is a perennial forb belonging to the Fabaceae (Pea) family. It's also commonly referred to as Cooper's milk vetch or neglected milkvetch.

Taxonomy and Nomenclature

  • Scientific Name: Astragalus neglectus (Torr. & A. Gray) Sheldon
  • Kingdom: Plantae
  • Taxonomic Rank: Species
  • Family: Fabaceae (Pea family)
  • Synonyms:
    • Astragalus cooperi A. Gray
    • Phaca neglecta Torr. & A. Gray

Distribution and Habitat

Cooper's Milkvetch is native to north-eastern North America. It thrives in habitats such as limestone glades, savannas, shorelines, alvar environments, and oak barrens. This plant is considered rare in Ontario and uncommon internationally.

Morphological Characteristics

  • Cooper's Milkvetch is a perennial forb that can reach a height of 30-90 cm (approximately 1-3 feet).
  • It arises from a taproot and features leafy, branching stems.
  • The plant has a somewhat shrubby appearance with pinnate leaves on branching stems.
  • It produces creamy white blossoms in June.

Quirky Facts

  • The species was originally named Astragalus cooperi by Asa Gray in honor of William Cooper (1798-1864), a noted American naturalist.

Further Information

  • USDA-NRCS PLANTS Database
  • Endangered Resces Program
  • ITIS (Integrated Taxonomic Information System)