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REED CANARYGRASS. Phalaris arundinacea L. Alexandra Zill. Characteristics. Found in PA wet areas Particular problem for Delaware River Green erect plant with hollow stems 3-7 ft tall Flowers in June. Characteristics. Tolerates long periods of inundation Also tolerant to drought

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reed canarygrass
REED CANARYGRASS

Phalaris arundinacea L.

Alexandra Zill

characteristics
Characteristics
  • Found in PA wet areas
  • Particular problem for Delaware River
  • Green erect plant with hollow stems 3-7 ft tall
  • Flowers in June
characteristics1
Characteristics
  • Tolerates long periods of inundation
  • Also tolerant to drought
  • Spreads by rhizomes and wind

dispersed seeds

  • Outcompetes native species to

form monoculture

    • Seeds germinate immediately

after maturing

    • Vigorously spreading rhizomes

that are hard to completely eliminate

characteristics2
Characteristics
  • European stock brought in 1920’s as forage for livestock and erosion control
  • Native variety now nearly indistinguishable from introduced
  • Can buy cultivars at home centers (variegated Ribbon grass) and seeds on eBay
  • Can be confused with Common reed, Canada bluejoint, and Orchard grass
control
Control
  • Hand pulling
  • Burning
  • Herbicides
  • Discing/plowing
  • Mowing
  • Covering with plastic

In all cases replanting with native species is important to preventing return and erosion

Continued monitoring necessary