Reed Canary Grass is native to temperate regions of Europe, Asia and North America. However, it is not native to the Tualatin River watershed. It was imported for pasture and erosion control contributing to its widespread presence in the watershed. It can be identified by its tall stems with thin, flat, rough leaves and dense flower heads. Unlike native grasses, it has a large, noticeable membrane (ligule) where the leaf blade connects to the stem. Reed Canary Grass grows in dense clumps that can take over wetland and streamside ecosystems, harming biodiversity and reducing habitat for native plant and animal species. It spreads rapidly making it one of the most impactful and difficult to control invasive plants.
