McDonald's rockcress occurs in serpentine, fairly barren habitat, usually on steep, unstable slopes or dry, open woods. These sites are often recently disturbed and below 5900 feet in elevation.
Limiting factors
Threats to McDonald's rockcress include slope erosion, road maintenance, logging, nickel-mining, over-collection, and off-road vehicle use. Vegetation succession may also render habitat unsuitable over time.
Data gaps
Develop propagation and transplanting protocols. Identify environmental variables associated with plant presence.
Conservation actions
Conduct surveys to locate new populations. Collect and bank seeds from Oregon populations. Minimize disturbance at priority sites during the growing season.
