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Jones' evening-primrose
Oenothera caespitosa ssp. crinita
NatureServe conservation status
Global (G-rank): G5T4T5
State (S-rank): S3
External links
Species range
Estimate from download of data from Utah Rare Plant Database on July 18, 2024.
Geocat 47 observations: Extent of Occurrence: 91,818.525 km2.
Historic observations over 40 years old were not used.
Shadscale, horsebrush, pinyon-juniper, mountain brush, sagebrush, ponderosa pine, and bristlecone pine communities at 1400 to 2595 m in Beaver, Box Elder, Davis, Emery, Garfield, Iron, Juab, Kane, Millard, Piute, Sanpete, Sevier, Utah, and Wayne cos.; Nev. and Calif (Welsh et al. 2015).
Threats or limiting factors
The main threats are from habitat degradation due to grazing, drought, and road maintenance. Future renewable energy development may impact some occurrences.
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.
Almost all occurrences are within grazing allotments. Drought and climate change is also a threat and likely impacting this species through out it's range (Wrobleski, 2023). Occurrences within UREZ phase 1 zone areas may be impacted in the future by solar and/or wind development. Occurrences near roads may be impacted by maintenance.
