Howell's mariposa lily occurs on serpentine outcrops at lower to middle elevations. This species may be more common on brush-covered slopes or in scattered woods.
Limiting factors
Mining, horticultural collecting, and grazing are among threats to this species.
Data gaps
Develop propagation and transplanting protocols. Investigate soil/microsite mechanisms causing endemism to serpentine soils.
Conservation actions
Manage grazing in occupied areas. Minimize impacts from mining.
