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Photo by Ben Franklin; Mindy Wheeler; Blake Willard; Blake Willard
Photo Courtesy of Utah Division of Wildlife Resources; Utah Division of Wildlife Resources; UNHP; UNHP; Sources: ESRI, USGS, NOAA
Barneby Ridgecress
Lepidium barnebyanum
Other common names: Barneby Pepper Grass
NatureServe conservation status
Global (G-rank): G1
State (S-rank): S1
External links
Phenology
Flowers from May to June.
Species range
Endemic to Duchesne County, Utah in the vicinity of Indian Canyon.
Threats or limiting factors
The inheriently small distribution (Duchesne County, Utah) and population size (estimated to less than 8,000 individuals) of Barneby ridge-cress may increase the species’ vulnerability to threats (USFWS 2021). The main threats are from habitat degradation due to energy and mineral extraction, drought, recreation, road maintenance, grazing and feral horses. Regulatory mechanisms are inadequate to address threats to the species (USFWS 2021). The potential effects of climate change and drought to the species have not been evaluated (USFWS 2021).
