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Harrison's milkvetch
Scientific Name: Astragalus harrisonii
Family: Fabaceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Harrison's Milkvetch (Astragalus harrisonii)
Astragalus harrisonii, commonly known as Harrison's Milkvetch, is a plant species of interest due to its limited distribution and conservation status.
Considerations for Pets
- As a member of the milkvetch family, some Astragalus species are referred to as "locoweed," particularly in the western US.
Taxonomy and Nomenclature
- Scientific Name: Astragalus harrisonii Barneby
- Common Names: Harrison's Milkvetch, Harrison milk-vetch
- Kingdom: Plantae
- Family: Fabaceae (also referred to as Leguminosae)
- Order: Fabales
Distribution and Habitat
- Astragalus harrisonii is found in the United States, including states such as Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, and Louisiana.
- It is often found in canyon bottoms, under cliffs, and on Jurassic Navajo Sandstone formations.
Ecological Role
- Astragalus harrisonii is a National Park Service Sensitive Species and was considered for listing as a federally endangered species in 1976.
Interactions with Other Organisms
- Astragalus harrisonii is spatially correlated with Navajo Sandstone, along with other plants such as Maguire's daisy and Rabbit Valley gilia.
- Milk vetch dwarf virus (MDV) is an aphid-borne virus that can affect milkvetches.
Further Information
- IUCN Red List: www.iucnredlist.org
- Discover Life: Discover Life's page about Astragalus harrisonii.
- Dave's Garden: Plant database entry for Harrison's Milkvetch (Astragalus harrisonii).
- USDA Forest Service, Fishlake
- Species.wikimedia.org