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Photo by Larry England
Photo Courtesy of United States Fish and Wildlife Service; Utah Division of Wildlife Resources; Sources: ESRI, USGS, NOAA
Autumn Buttercup
Ranunculus aestivalis
Other common names: Fall Buttercup
NatureServe conservation status
Global (G-rank): G5T1
State (S-rank): S1
External links
Phenology
Flowers from late July to early October.
Species range
This species is known only from two sites in the Sevier River Valley in Garfield County, Utah.
Threats or limiting factors
The inheriently small distribution (Sevier River Valley in Garfield County, Utah) and population size of autumn buttercup may increase the species’ vulnerability to threats (USFWS 2025). The current threats to this species are from loss of individuals and habitat loss as a result of climate change, small mammal herbivory, inappropriate grazing management, introduced plant species (like Scotch thistle), and water diversion (USFWS 2024). Regulatory mechanisms are inadequate to address threats to the species (USFWS 2024).
