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Elymus repens (Common Couch) is a species of perennial grass in the family True grasses. They have a self-supporting growth form. They are native to Western North America. They have simple, broad leaves and yellow flowers. Flowers are visited by Harlequin Ladybird. Individuals can grow to 2.6 feet.

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EOL has data for 84 attributes, including:

Known occurrences, collected specimens and observations of Common Couch. View this species on GBIF