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Nevada milkvetch
Scientific Name: Astragalus bisulcatus var. nevadensis
Family: Fabaceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Milkvetches (Astragalus species)
The genus Astragalus, commonly known as milkvetch, encompasses a diverse group of plants found across various regions of North America. Several species and varieties are mentioned, each with unique characteristics and distributions.
Considerations for Pets
- Some milkvetch species are referred to as "loco weed," suggesting the potential for adverse effects if ingested.
Nomenclature and Taxonomy:
- Genus: Astragalus
- Family: Fabaceae (Pea/Bean Family)
- Species and Varieties Mentioned:
- Astragalus bisulcatus
- Astragalus bisulcatus var. nevadensis (Nevada milkvetch)
- Astragalus purshii
- Astragalus phoenix (Ash Meadows milkvetch)
- Astragalus geyeri var. triquetrus (Three-corner Milkvetch)
- Astragalus lentiginosus (Freckled Milkvetch)
- Astragalus Utahensis (Utah Milkvetch)
- Astragalus yoder-williamsii (Osgood Mountains milkvetch)
- Astragalus piutensis (Sevier Milkvetch)
- Astragalus pulsiferae var. pulsiferae (Ames milkvetch)
- Astragalus austiniae (Austin's milkvetch)
- Astragalus australis v. olympicus (syn A. cottonii) (Cotton's milk-vetch)
- Astragalus allochrous allochrous (Halfmoon milkvetch)
- Astragalus tephrodes (Ashen milkvetch)
- Astragalus malacus (Shaggy milkvetch)
- Astragalus anserinus (Goose Creek milkvetch)
- Synonyms: A. cottonii is listed as a synonym for Astragalus australis v. olympicus.
- Lathyrus lanszwertii, also called leucanthus, family Fabaceae (Pea/Bean)
Distribution and Habitat:
- Ash Meadows milkvetch (Astragalus phoenix): Endemic to Nye County, Nevada.
- Nevada milkvetch (Astragalus bisulcatus var. nevadensis): Found in Nevada.
- Three-corner Milkvetch (Astragalus geyeri var. triquetrus): Nevada.
- Freckled Milkvetch (Astragalus lentiginosus): High Sierra Nevada, southern Sierra Nevada, Tehachapi Mountain Area, San Joaquin Valley.
- Austin's milkvetch (Astragalus austiniae): Sierra Nevada of California and Nevada.
- Utah Milkvetch (Astragalus Utahensis): Great Basin National Park, Nevada.
- Sevier Milkvetch (Astragalus piutensis): Nevada and Utah.
- Goose Creek milkvetch (Astragalus anserinus): Goose Creek drainage of Cassia County, Idaho; Elko County, Nevada; and Box Elder.
- Pursh's Milk Vetch (Astragalus purshii var. lectulus): High Sierra Nevada, the Transverse Range and Sierra Nevada East regions.
- Indian Milkvetch: From the state of Washington to the Dakotas and towards south to Colorado and Nevada.
- General Habitats: Dry, hard, white, barren saline, clay flats, knolls, and slopes; Amargosa River; dry, open areas.
Morphological Characteristics:
- Three-corner Milkvetch: Short.
- Freckled Milkvetch: Height 4 to 20 inches.
- Ash Meadows milkvetch (Astragalus phoenix): rare species
- Goose Creek milkvetch (Astragalus anserinus): rare plant
Ecological Role:
- Three-corner milkvetch is a Fully Protected species in the state of Nevada.
- One federally-listed endangered plant: sentry milk-vetch (Astragalus).
Interactions with Other Organisms:
- Sierra Nevada red fox use multiple habitat types.
Common Names:
- Astragalus lentiginosus: Freckled milkvetch, rattleweed, loco weed.
- Also called Whitney's milk vetch, balloonpod milkvetch, balloon-pod milk-vetch or balloon milk-vetch.
Resources and Further Information:
- Nevada Natural Heritage Program
- USDA-NRCS PLANTS Database
- Database for Nevada milkvetch Natives Fabaceae.