White-topped Aster

Photo Credit: Oregon Department of Agriculture


  • Species Common Name White-topped Aster
  • Species Scientific Name Sericocarpus rigidus
  • Federal Listing Status Species of Concern
  • State Listing Status Threatened


Special needs

White-topped aster occurs in open grasslands, including seasonally-wet prairies and oak savannah.

Limiting factors

Primary threats to white-topped aster include habitat loss and habitat degradation due to lack of fire and competition from invasive plants. Overspray of herbicides may also harm this species.

Conservation actions

Maintain or restore grass-dominated habitat. Control key invasive plants. Use mowing or prescribed fire to control brush and trees. Maintain populations in roadsides and ditches. Collect and store seeds.

Key reference or plan

Oregon Department of Agriculture Plant Conservation