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Common Reed

Phragmites australis ssp. australis

Plant Description

Woody, hollow stems with showy plume-like terminal flowering stalks that are green to reddish.

Plant Details

Life Forms
ODA Listing
Soil and Moisture Conditions
Suggested Actions
Shade Preference
Mature Height 3-14'
Distribution lower Columbia River islands, tidals flats and Willamette River
Control Manually remove small patches by digging, being sure to remove every rhizome fragment
Reproduction and Spread Root fragments disperse downstream. Seed dispersal by wind, water, and wildlife.
Introduced Native to Africa and temperate areas of Asia and Europe.
Look Alikes Native Phragmites australis ssp. americanus
Impact Aggressive invasive that excludes large wading birds and reduces feeding grounds for birds, reduces habitat for important fish species; can block fish passage; steepens creek banks; can alter soil invertebrate communities; decreases waterfront property values.
More Info
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