Malheur wire-lettuce is found in eastern Oregon sagebrush steppe. The species occurs on the tops of broad hills, above surrounding flats. Malheur wire-lettuce is often associated with volcanic tuff layered with thin crusts of limestone.
Limiting factors
Small population size puts Malheur wire-lettuce at risk of extirpation due to stochastic events. Competition from invasive plants, including cheatgrass, is an important threat. Herbivory and soil compaction by researchers may also be harmful to this species.
Data gaps
Investigate seed bank survivorship to determine the length of time seeds remain viable (both in soil and in storage).
Conservation actions
This plant is only known to a single site on Bureau of Land Management-protected land. Identify suitable habitat for reintroduction, and establish additional populations. Continue to minimize mining activity near Malheur wire-lettuce. Continue banking seeds for future needs.
