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Toano milkvetch
Astragalus toanus
NatureServe conservation status
Global (G-rank): G4G5
State (S-rank): S2?
External links
Species range
Estimate from download of data from Utah Rare Plant Database on Dec 1st 2022.
Geocat 8 observations: Extent of Occurrence: 2,609.996 km2.
Historic observations over 40 years old were not used.
Threats or limiting factors
Threats to this species are not well documented. Threats compiled using observations and notes from Utah Rare Plant Database and Utah Geospatial Resource Center GIS Data downloaded in 2022. Severity of impacts are not well known so ranges are provided where appropriate.
Most known occurrences are within active grazing allotments and may be subject to trampling from livestock, however the species contains the nitrogenous toxin miserotoxin that likely discourages grazing. The Utah Division of Water Resources confirmed the Utah is now in "extreme" or "exceptional" drought which is likely impacting this species in similar ways as it is other perennial forbs in Utah. Several occurrences are within UREZ phase 1 solar zone areas.
