Smooth mentzelia occurs on dry, open, green or grey montmorillonite-derived soils from the Succor Creek formation. This species is typically associated with areas of abnormally high potassium content (popcorn clay), at elevations of approximately 2500-4420 feet.
Limiting factors
This species is threatened by road construction and maintenance, off-road vehicle use, grazing, mining, range improvement practices, range fires, and trampling by hikers. Climatic fluctuations and the absence of pollinators may also impact smooth mentzelia.
Data gaps
Improve understanding of reproductive biology. Develop propagation and transplanting protocols. Analyze genetic variation within and among populations. Compare morphological traits of northern and southern populations.
Conservation actions
Ban significant ground-disturbing activities that could harm this species. Fence populations on public land to reduce grazing impacts. Conduct photo-monitoring of trampling caused by researchers. Experiment with revegetation in disturbed sites.
