Skip to Main Content View Text-Only

The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

More Contact Info


Forest floor full of false-bromeBrachypodium sylvaticum (false-brome)

  • ODA “B” rank species (ODA ranking page)
  • Portland 'Required Eradication' species

False-brome is a perennial bunch grass introduced as an experimental forage plant in the late 1930s. Since then, it has become widely distributed in northwestern Oregon and is found in limited areas of the Portland metro area. Efforts to understand false-brome spread and manage populations began in the late 1980s in the Corvallis area. It is known for creating dense carpets of vegetation, and spreads easily in a number of ways.