Owyhee Clover

Photo Credit: Oregon Department of Agriculture


  • Species Common Name Owyhee Clover
  • Species Scientific Name Trifolium owyheense
  • Federal Listing Status Species of Concern
  • State Listing Status Endangered


Special needs

This species is endemic to the Owyhee Uplands. Owyhee clover occurs on barren slopes or mounds composed of talus and loose soils derived from tuffaceaus/ashy parent material.

Limiting factors

Invasive weeds can displace Owyhee clover. Ground disturbance by livestock, spraying and seeding associated with rangeland improvements, road construction, and off-road vehicle traffic can also harm this species. Potential habitat loss from development of mining claims is an additional threat.

Conservation actions

Mitigate for range projects that are potentially damaging to the species. Minimize ash and gravel excavation in sensitive areas. Manage recreational activity in sensitive areas.

Key reference or plan

Oregon Department of Agriculture Plant Conservation