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Owyhee milkvetch
Scientific Name: Astragalus atratus var. owyheensis
Family: Fabaceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Owyhee Milkvetch (Astragalus atratus var. owyheensis)
Learn about the Owyhee Milkvetch, a plant with a unique distribution and interesting relationships to its environment.
Considerations for Pets and Children
Based on available information:
- Owyhee Milkvetch is listed as "not safe" for children, dogs, and cats.
Taxonomy and Nomenclature
- Scientific Name: Astragalus atratus S. Watson var. owyheensis (A. Nelson & J.F. Macbr.) M.E. Jones
- Common Name: Owyhee Milkvetch
- Kingdom: Plantae
- Taxonomic Rank: Variety
- Synonym: Astragalus owyheensis A. Nelson & J.F. Macbr.
- Other Combinations: Tium owyheense (A. Nelson & J.F. Macbr.) Rydb.
Distribution and Habitat
- Endemic to the Owyhee Uplands.
- Occurs along the Owyhee River.
- Found in Harney County, Oregon, east through the Owyhee Desert to Twin Falls County, Idaho, south in Nevada to northern Washoe and northern Nye counties.
- Also found in the Boise Foothills and Owyhee Front areas.
Morphological Characteristics
- Type: Forb/herb.
- Life Cycle: Perennial.
Ecological Role
- Associated with conservation efforts, particularly concerning Mulford's Milkvetch in the Owyhee Front area and Northern Owyhee County.
Associated Species
- Resembles the closely related Astragalus cusickii var.
- Grows alongside other rare plants like grimy ivesia and Owyhee clover.
- Other milkvetches include Goose Creek Milkvetch (Astragalus anserinus), Cotton's milk-vetch (Astragalus australis var. olympicus), Mning milkvetch (Astragalus atratus inseptus) and Barr milkvetch.
Further Information
- Encyclopedia of Life: Information on Owyhee Milkvetch (Astragalus atratus var. owyheensis).