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Jacumba milkvetch

Scientific Name: Astragalus douglasii

Family: Fabaceae

Category: Dicot

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Jacumba Milkvetch (Astragalus douglasii var. perstrictus)

The Jacumba milkvetch, scientifically known as Astragalus douglasii var. perstrictus, is a rare variety of milkvetch found primarily in San Diego County. It is also referred to as Astragalus douglasii var. douglasii.

Taxonomy and Nomenclature

  • Scientific Name: Astragalus douglasii (Torrey & A. Gray) A. Gray var. perstrictus (Rydb.) Munz & McBurney
  • Family: Fabaceae (Pea or Legume Family)
  • Synonym: Astragalus douglasii var. megalophysus (Rydb.) Munz & McBurney
  • Alternative Scientific Name: Phaca douglasii Torr. & A. Gray

Common Names

  • Jacumba milk vetch
  • Douglas' milkvetch
  • Parish's Jacumba milk-vetch (Astragalus douglasii var. parishii)

Distribution and Habitat

Astragalus douglasii var. perstrictus is primarily found in the desert transition areas of southern California, specifically in San Diego County and the Anza Borrego Desert State Park’s Jacumba Mountain Wilderness. It can be found in chaparral, foothill woodland and valley grassland habitats and lower mountain slopes.

Morphological Characteristics and Growth Habits

Jacumba milkvetch is a perennial forb/herb.

Further Information

  • USDA-NRCS PLANTS Database
  • BISON Web Link: http://bison.usgs.ornl.gov/api/scientificName/Astragalus%20douglasii%20perstrictus
  • ITIS Web Link