Arrow-leaf Thelypody

Photo Credit: Oregon Department of Agriculture


  • Species Common Name Arrow-leaf Thelypody
  • Species Scientific Name Thelypodium eucosmum
  • Federal Listing Status Species of Concern
  • State Listing Status Threatened


Special needs

Arrow-leaf thelypody occurs with western junipers along streambanks, seasonally-moist areas, seeps, and under isolated juniper trees away from obvious moisture.

Limiting factors

Arrow-leaf thelypody is endemic to the tributaries of the John Day River. This species is palatable to cattle and sensitive to grazing pressure.

Conservation actions

Minimize grazing at priority sites. Collect and store seeds.

Key reference or plan

Oregon Department of Agriculture Plant Conservation