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Broad-keeled milkvetch
Astragalus platytropis
NatureServe conservation status
Global (G-rank): G4
State (S-rank): S1
External links
Species range
Estimate from download of data from Utah Rare Plant Database on March 20, 2024.
Geocat observations: 1 Extent of Occurrence: one occurrence in Utah from 1964
No occurrences within the last 40 years have been recorded in Utah
Ridge tops in shrub communities on limestone outcrops and gravels at 2400 to 3500 m in w. Beaver, Kane, Millard, and Tooele counties, Utah; Nevada and California (Welsh et al. 2015).
Threats or limiting factors
There is only one reported occurrence of Astragalus platytropis in Utah, from the Deep Creek Range. Threats to this species are not well documented. The main threats to this occurrence is due to impacts from drought and grazing. Threats compiled using observations and notes from Utah Rare Plant Database and Utah Geospatial Resource Center GIS Data downloaded in 2024. Severity of impacts are not well known so ranges are provided where appropriate. The occurrence is within the boundaries of a cattle grazing allotment. The occurrence is also near a road. Drought and climate change is also a threat and likely impacting this species through out it's range (Wrobleski, 2023). Droughts and rapid snowmelt due to wind-blown sediments are melting snowpack earlier than normal in our region (UNPS, accessed 2024).This is one of several taxa that may be threatened by the proposed introduction of naturalized mountain goats by the State of Utah in the Deep Creek Mountains (UNPS, accessed 2024).
