Photo-PA Natural Heritage Program

Where are they from?

Non-native species of Reed Canary Grass come from Europe and temperate areas of Asia. In the Northern part of the United States plants these plants along steep slopes, places with poor soils, and man-made wetlands.

Why are they so harmful?

Like other invasive species, this grass out competes native grasses and forms mono-culture stands. Reed canary grass can spread quickly because of its rhizomes or horizontal roots. These roots encourage sediment build-up in wetland settings and can constrict waterways. Native wildlife has little to no use for this plant and thus can be harmful when areas are taken over.

How can I identify this grass?

Use identifying apps like Seek by iNaturalist (On both Apple and Google Play stores).

When unable to use phones, remembering what the plant looks like from pictures and descriptions is best. This grass can grow up to 9 feet high with large, long, seed heads that appear in June and July. Leaves are greenish blue and rough to the touch.

Where can I learn more?

PA DCNR--PDF