Rough Popcornflower

Photo Credit: Oregon Department of Agriculture


  • Species Common Name Rough Popcornflower
  • Species Scientific Name Plagiobothrys hirtus
  • Federal Listing Status Endangered
  • State Listing Status Endangered


Special needs

Rough popcornflower occurs in shaded, seasonally-wet pools (vernal pools).

Limiting factors

Habitat loss due to conversion of wetlands to agricultural fields and urban development has adversely affected this species. Fire suppression, invasive plant infestations, and livestock grazing are additional threats.

Conservation actions

Avoid herbicide spraying on roadside populations. Work cooperatively with private landowners to maintain rough popcornflower on private land. Acquire land with quality habitat for population creation projects. Continue monitoring of existing populations. Carefully manage grazing and fence priority sites, if necessary.

Key reference or plan

Oregon Department of Agriculture Plant Conservation