Reed Canarygrass


Reed Canarygrass (Phalaris arundinacea) Grass family

Tall reed-like perennial rising from stout rhizomes. Stems are hollow, 2 to 6 feet tall, with bluish-green waxy coating. Leaf blades flat, up to 3/4 inch wide, with transparent ligules. Panicle inflorescence is 6 to 18 cm long with spikelets occurring in clusters on short scabrous branches. Seed heads compact at first then opening at maturity.

Forms dense, persistent, mono-specific stands that may threaten salmon habitat. Difficult to impossible to eradicate once established. Spreads with creeping rhizomes, effectively excluding all other vegetation.

Common in the Kenai Peninsula. Spreading along several Kenai Peninsula waterways including the Kenai River. Look for reed canary grass in human disturances and wetlands.

More information


U.S. Forest Service National Park Service UAF Cooperative Extension Service Kenai Watershed Forum U.S. Fish and Wildlife Service Homer Soil and Water Conservation District